1. Erthygl › Ymchwil › Adolygwyd gan gymheiriaid
2. Cyhoeddwyd

   ULIXES, unravelling and exploiting Mediterranean Sea microbial diversity and ecology for xenobiotics' and pollutants' clean up

   Daffonchio, D., Mapelli, F., Cherif, A., Malkawi, H. I., Yakimov, M. M., Abdel-Fattah, Y. R., Blaghen, M., Golyshin, P. N., Ferrer, M., Kalogerakis, N., Boon, N., Magagnini, M. & Fava, F., Medi 2012, Yn: Reviews in Environmental Science and Bio/Technology. 11, 3, t. 207-211

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

3. Cyhoeddwyd

   US AID's private sector housing programme in urban Zimbabwe: examining the terrain from the terraces

   Kamete, A. & Kamete, A. Y., 1 Ebr 2001, Yn: Environment and Urbanization. 13, 1, t. 125-135

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

4. Cyhoeddwyd

   UV-visible absorbance spectroscopy as a proxy for peatland dissolved organic carbon (DOC) quantity and quality: considerations on wavelength and absorbance degradation

   Gough, R. S., Peacock, M., Evans, C. D., Fenner, N., Freeman, C., Gough, R., Jones, T. G. & Lebron, I., 4 Ebr 2014, Yn: Environmental Science: Processes and Impacts. 50, 6, t. 1445-1461

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

5. Cyhoeddwyd

   Ultra-fast co-sensitization and tri-sensitization of dye-sensitized solar cells with N719, SQ1 and triarylamine dyes

   Holliman, P. J., Mohsen, M., Connell, A., Davies, M. L., Al-Salihi, K., Pitak, M. B., Tizzard, G. J., Coles, S. J., Harrington, R. W., Clegg, W., Serpa, C., Fontes, O. H., Charbonneau, C. & Carnie, M. J., 2 Mai 2012, Yn: Journal of Materials Chemistry. 26, t. 13318-13327

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

6. Cyhoeddwyd

   Ultra-fast dye sensitisation and co-sensitisation for dye sensitized solar cells.

   Holliman, P. J., Davies, M. L., Connell, A., Velasco, B. V. & Watson, T. M., 14 Hyd 2010, Yn: Chemical Communications. 46, 38, t. 7256-7258

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

7. Cyhoeddwyd

   Ultrasequencing of the meiofaunal biosphere: practice, pitfalls and promises.

   Creer, S., Fonseca, V. G., Porazinska, D. L., Giblin-Davis, R. M., Sung, W., Powers, D. M., Packer, M., Carvalho, G. R., Blaxter, M. L., Lambshead, P. J. & Thomas, W. K., 1 Maw 2010, Yn: Molecular Ecology. 19, 1, t. 4-20

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

8. Cyhoeddwyd

   Ultrastructure and physical properties of an adhesive surface, the toe pad epithelium of the tree frog, Litoria caerulea.

   Scholz, I., Barnes, W. J. P., Smith, J. M. & Baumgartner, W., 2009, Yn: Journal of Experimental Biology. 212, t. 155-162

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

9. Cyhoeddwyd

   Unconventional Langmuir-Blodgett films: alignment of an optically nonlinear dye where the donor and pi-electron bridge are hydrophobic and the acceptor is hydrophilic

   Ashwell, G. J., Maxwell, A. A. & Green, A., 1 Awst 2002, Yn: Journal of Materials Chemistry. 12, 8, t. 2192-2196

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

10. Cyhoeddwyd

    Uncovering a microbial enigma: isolation and characterization of the streamer-generating, iron-oxidizing acidophilic bacteriam, "Ferrovum myxofaciens"

    Johnson, D. B., Hallberg, K. B., Hedrich, S. & Hedrich, S. (gol.), Ion 2014, Yn: Applied and Environmental Microbiology. 80, 2, t. 672-680

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

11. Cyhoeddwyd

    Understanding Farmer Co-operation: Exploring practices of social relatedness and emergent affects.

    Wynne-Jones, S., Gorff 2017, Yn: Journal of Rural Studies. 53, t. 259-268

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

12. Cyhoeddwyd

    Understanding and assisting natural regeneration processes in degraded seasonal evergreen forests in Northern Thailand

    Hardwick, K., Healey, J., Elliott, S., Garwood, N. C. & Anusarnsunthorn, V., 1997, Yn: Forest Ecology and Management. 99, 1, t. 203-214

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

13. Cyhoeddwyd

    Understanding and managing uncertainty and variability for wastewater monitoring beyond the pandemic: Lessons learned from the United Kingdom national COVID-19 surveillance programmes

    Wade, M. J., Lo Jacomo, A., Armenise, E., Brown, M. R., Bunce, J. T., Cameron, G. J., Fang, Z., Farkas, K., Gilpin, D. F., Graham, D. W., Grimsley, J. M. S., Hart, A., Hoffmann, T., Jackson, K. J., Jones, D. L., Lilley, C. J., McGrath, J. W., McKinley, J. M., McSparron, C., Nejad, B. F., Morvan, M., Quintela-Baluja, M., Roberts, A. M. I., Singer, A. C., Souque, C., Speight, V. L., Sweetapple, C., Walker, D., Watts, G., Weightman, A. & Kasprzyk-Hordern, B., 15 Chwef 2022, Yn: Journal of Hazardous Materials. 424, Pt B, 127456.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

14. Cyhoeddwyd

    Understanding and tackling snakebite envenoming with transdisciplinary research

    Guttierrez, J. M., Borri, J., Giles-Vernick, T., Duda, R., Habib, A. G., Malhotra, A., Martin, G., Pintor, A. F. V., Potet, J., Scott, T., Bolon, I. & de Castaneda, R. R., 17 Tach 2022, Yn: PLoS Neglected Tropical Diseases. 16, 11, t. e0010897 e0010897.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

15. Cyhoeddwyd

    Understanding community criteria for assessing forest co-management programmes: evidence from Malawi

    Chinangwa, L., Pullin, A. S. & Hockley, N., 1 Maw 2017, Yn: International Forestry Review. 19, 1, t. 17-28 12 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

16. Cyhoeddwyd

    Understanding patterns of tree adoption on farms in semi-arid and sub-humid Ethiopia

    Iiyama, M., Derero, A., Kelemu, K., Muthuri, C., Kinuthia, R., Ayenkulu, E., Kiptot, E., Hadgu, K., Mowo, J. & Sinclair, F. L., Ebr 2017, Yn: Agroforestry Systems. 91, 2, t. 271-293

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

17. Cyhoeddwyd

    Understanding rural-urban transitions in the Global South through Peri-Urban Turbulence

    Hutchings, P., Willcock, S., Lynch, K., Bundhoo, D., Brewer, T., Cooper, S., Keech, D., Mekala, S., Mishra, P. P., Parker, A., Shackleton, C. M., Venkatesh, K., Rey Vicario, D. & Welivita, I., Tach 2022, Yn: Nature Sustainability . 5, 11, t. 924-930

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

18. Cyhoeddwyd

    Understanding the Impacts of Research Synthesis

    Wyborn, C., Louder, E., Harrison, J., Montambault, J., Montana, J., Ryan, M., Bednarek, A., Nesshover, C., Pullin, A., Reed, M., Dellecker, E., Kramer, J., Boyd, J., Dellecker, A. & Hutton, J., Awst 2018, Yn: Environmental Science and Policy. 86, t. 72-84

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

19. Cyhoeddwyd

    Understory vegetation in oil palm plantations benefits soil biodiversity and decomposition rates

    Ashton-Butt, A., Aryawan, A. A. K., Hood, A. S. C., Naim, M., Purnomo, D., Suhardi, Wahyuningsih, R., Willcock, S., Poppy, G. M., Caliman, J-P., Turner, E. C., Foster, W. A., Peh, K. S. -H. & Snaddon, J. L., 14 Rhag 2018, Yn: Frontiers in Forests and Global Change. 1, 10, 32 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

20. Cyhoeddwyd

    Unearthing human pathogens at the agricultural–environment interface: A review of current methods for the detection of Escherichia coli O157 in freshwater ecosystems

    Quilliam, R. S., Williams, A. P., Avery, L. M., Malham, S. & Jones, D. L., 1 Maw 2011, Yn: Agriculture, Ecosystems and Environment. 140, 3-4, t. 354-360

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

21. Cyhoeddwyd

    Unexpected lack of specialisation in the flow properties of spitting cobra venom

    Avella, I., Barajas-Ledesma, E., Casewell, N. R., Harrison, R. A., Rowley, P., Crittenden, E., Wüster, W., Castiglia, R., Holland, C. & van der Meijden, A., 7 Ebr 2021, Yn: Journal of Experimental Biology. 224, 7, 11 t., jeb229229.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

22. Cyhoeddwyd

    Unique mechanism of action of the thiourea drug isoxyl on Mycobacterium tuberculosis

    Phetsuksiri, B., Jackson, M., Scherman, H., McNeil, M., Besra, G. S., Baulard, A. R., Slayden, R. A., DeBarber, A. E., Barry, C. E., Baird, M. S., Crick, D. C. & Brennan, P. J., 26 Rhag 2003, Yn: Journal of Biological Chemistry. 278, 52, t. 53123-53130

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

23. Cyhoeddwyd

    Universal Markovian reduction of Brownian particle dynamics.

    Martinazzo, R., Vacchini, B., Hughes, K. H. & Burghardt, I., 7 Ion 2011, Yn: Journal of Chemical Physics. 134, 1, t. 011101

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

24. Cyhoeddwyd

    Unraveling a Brownian particle’s memory with effective mode chains

    Martinazzo, R., Hughes, K. H. & Burghardt, I., 14 Medi 2011, Yn: Physical Review E. 84, 3, t. Article 030102

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

25. Cyhoeddwyd

    Unraveling the Importance of Polyphenols for Microbial Carbon Mineralization in Rewetted Riparian Peatlands

    Zak, D., Roth, C., Unger, V., Goldhammer, T., Fenner, N., Freeman, C. & Jurasinski, G., 4 Hyd 2019, Yn: Frontiers in Environmental Science. 7

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

26. Cyhoeddwyd

    Unusual posture of a male northern viper Vipera berus – a more efficient way to bask?

    Pozzi, A. & Limia Russel, G., 1 Hyd 2021, Yn: Herpetological Bulletin. 157, t. 42-43

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

27. Cyhoeddwyd

    Unusual selectivity in the oxidative functionalization of gem-dibromocyclopropanes

    Nizovtsev, A. V., Baird, M. S. & Bolesov, I. G., 12 Ebr 2004, Yn: Tetrahedron. 60, 16, t. 3717-3729

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

28. Cyhoeddwyd

    Unveiling microbial life in new deep-sea hypersaline Lake Thetis. Part I: Prokaryotes and environmental settings

    Golyshin, P., Golyshina, O., La Cono, V., Smedile, F., Bortoluzzi, G., Arcadi, E., Maimone, G., Messina, E., Borghini, M., Oliveri, E., Mazzola, S., L'Haridon, S., Toffin, L., Genovese, L., Ferrer, M., Giuliano, L., Golyshin, P. N. & Yakimov, M. M., 1 Awst 2011, Yn: Environmental Microbiology. 13, 8, t. 2250-2268

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

29. Cyhoeddwyd

    Unveiling microbial life in the new deep-sea hypersaline Lake Thetis. Part II: a metagenomic study

    Ferrer, M., Werner, J., Chernikova, T. N., Bargiela, R., Fernández, L. L., Waldmann, J., Teeling, H., Golyshina, O. V., Glöckner, F. O., Yakimov, M. M. & Golyshin, P. N., 1 Ion 2012, Yn: Environmental Microbiology. 14, 1, t. 268-281

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

30. Cyhoeddwyd

    Upconversion of Cellulosic Waste Into a Potential “Drop in Fuel” via Novel Catalyst Generated Using Desulfovibrio desulfuricans and a Consortium of Acidophilic Sulfidogens

    Mikheenko, I. P., Gomez-Bolivar, J., Merroun, M. L., Macaskie, L. E., Sharma, S., Walker, M., Hand, R. A., Grail, B., Johnson, D. B. & Orozco, R. L., 10 Mai 2019, Yn: Frontiers in Microbiology. 10, 970.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

31. Cyhoeddwyd

    Upscaling leaf area index in an Arctic landscape through multiscale observations

    Street, L., Williams, M., Bell, R., Spadavecchia, L., Street, L. E. & Van Wijk, M. T., 1 Gorff 2008, Yn: Global Change Biology. 14, 7, t. 1517-1530

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

32. Cyhoeddwyd

    Upstream-independent ribosomal RNA amplification analysis (URA): a new approach to characterizing the diversity of natural microbial communities.

    Golyshin, P., Yakimov, M. M., Giuliano, L., Timmis, K. N. & Golyshin, P. N., 1 Hyd 2001, Yn: Environmental Microbiology. 3, 10, t. 662-666

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

33. Cyhoeddwyd

    Uptake of an amino acid (alanine) and its peptide (trialanine) by the saltmarsh halophytes Salicornia europaea and Aster tripolium and its potential role in ecosystem N cycling and marine aquaculture wastewater treatment

    Quinta, R., Hill, P. W., Jones, D. L., Santos, R., Thomas, D. N. & Le Vay, L., Chwef 2015, Yn: Ecological Engineering. 75, t. 145–154

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

34. Cyhoeddwyd

    Urban greening to cool towns and cities: a systematic review of the empirical evidence.

    Knight, T. M., Bowler, D. E., Buyung-Ali, L. M., Knight, T. & Pullin, A. S., 15 Medi 2010, Yn: Landscape and Urban Planning. 97, 3, t. 147-155

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

35. Cyhoeddwyd

    Urea-based fertilization strategies to reduce yield-scaled N oxides and enhance bread-making quality in a rainfed Mediterranean wheat crop

    Guardia, G., Sanz-Cobena, A., Sanchez-Martin, L., Fuertes-Mendizabal, T., Gonzalez-Murua, C., Alvarez, J. M., Chadwick, D. & Vallejo, A., Hyd 2018, Yn: Agriculture, Ecosystems and Environment. 265, t. 421-431

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

36. Cyhoeddwyd

    Urine enhances the leaching and persistence of estrogens in soils.

    Lucas, S. D. & Jones, D. L., 1 Chwef 2009, Yn: Soil Biology and Biochemistry. 41, 2, t. 236-242

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

37. Cyhoeddwyd

    Use of Hydrologic Landscape Classification to Diagnose Streamflow Predictability in Oregon

    Patil, S. D., Wigington, P. J., Leibowitz, S. G. & Comeleo, R. L., 18 Tach 2013, Yn: Journal of the American Water Resources Association. 50, 3, t. 762–776

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

38. Cyhoeddwyd

    Use of Mytilus edulis biosentinels to investigate spatial patterns of norovirus and faecal indicator organism contamination around coastal sewage discharges

    Winterbourn, J., Clements, K., Lowther, J. A., Malham, S., McDonald, J. & Jones, D., 15 Tach 2016, Yn: Water Research. 105, November, t. 241-250

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

39. Cyhoeddwyd

    Use of Native Animals by Local Communities in Madagascar

    Robinson, J., Raharimalala, J., Bicknell, J., St John, F. A. V., Griffiths, R. A., Razafimanahaka, J. H. & Gardner, C. J., 1 Awst 2022, Yn: Environmental Challenges. 8, 100577.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

40. Cyhoeddwyd

    Use of a Randomized Response Technique to obtain sensitive information on animal disease prevalence

    Cross, P., Edwards-Jones, G., Omed, H. & Williams, A. P., 1 Ion 2010, Yn: Preventive Veterinary Medicine. 96, 3-4, t. 252-262

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

41. Cyhoeddwyd

    Use of a choice-based survey approach to characterise fishing behaviour in a scallop fishery

    Shepperson, J., Lambert, G., Murray, L., Mackinson, S., Bell, E. & Kaiser, M., 1 Rhag 2016, Yn: Environmental Modelling and Software. 86, t. 116-130

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

42. Cyhoeddwyd

    Use of a coupled soil-root-leaf model to optimise phosphate fertiliser use efficiency in barley

    Heppell, J., Payvandi, S., Talboys, P., Zygalakis, K. C., Langton, D., Sylvester-Bradley, R., Edwards, A. C., Walker, R., Withers, P., Jones, D. & Roose, T., 1 Medi 2016, Yn: Plant and Soil. 406, 1-2, t. 341-357

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

43. Cyhoeddwyd

    Use of commercial bio-inoculants to increase agricultural production through improved phophorous acquisition.

    Oween, D., Williams, A. P., Griffith, G. W. & Withers, P. J., 17 Hyd 2014, Yn: Applied Soil Ecology. 86, t. 41-54

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

44. Cyhoeddwyd

    Use of composts in the remediation of heavy metal contaminated soil.

    Farrell, M. & Jones, D. L., 15 Maw 2010, Yn: Journal of Hazardous Materials. 175, 1-3, t. 575-582

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

45. Cyhoeddwyd

    Use of cues by Lipophrys pholis L. (Teleostei, Blenniidae) in learning the position of a refuge

    Dodd, J., Gibson, R. N. & Hughes, R. N., 3 Ebr 2000, Yn: Behavioural Processes. 49, 2, t. 69-75

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

46. Cyhoeddwyd

    Use of earthworm casts to validate FT-IR spectroscopy as a 'sentinel' technology for high-throughput monitoring of global changes in microbial ecology.

    Scullion, J., Elliott, G. N., Huang, W. E., Goodacre, R., Worgan, H., Darby, R., Bailey, M. J., Gwynn-Jones, D., Griffith, G. W., Winson, M. K., Williams, P. A., Clegg, C. & Draper, J., 1 Ion 2003, Yn: Pedobiologia. 47, 5-6, t. 440-446

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

47. Cyhoeddwyd

    Use of metabolomics to quantify changes in soil microbial function in response to fertiliser nitrogen supply and extreme drought

    Brown, R. W., Chadwick, D. R., Zang, H. & Jones, D. L., Medi 2021, Yn: Soil Biology and Biochemistry. 160, 108351.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

48. Cyhoeddwyd

    Use of organic amendments for remediation: turning waste to good use

    Jones, D. L. & Healey, J. R., 1 Rhag 2010, Yn: Elements. 6, 6, t. 369-375

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

49. Cyhoeddwyd

    Use of untargeted metabolomics for assessing soil quality and microbial function

    Withers, E., Hill, P. W., Chadwick, D. R. & Jones, D. L., Ebr 2020, Yn: Soil Biology and Biochemistry. 143, 107758.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

50. Cyhoeddwyd

    Use of untargeted metabolomics to analyse changes in extractable soil organic matter in response to long-term fertilisation

    Tang, S., Ma, Q., Zhou, J., Pan, W., Chadwick, D. R., Gregory, A. S., Wu, L. & Jones, D. L., 1 Ebr 2023, Yn: Biology and Fertility of Soils. 59, 3, t. 301-316

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

51. Cyhoeddwyd

    Using DNA metabarcoding to investigate honey bee foraging reveals limited flower use despite high floral availability

    De Vere, N., Jones, L. E., Gilmore, T., Moscrop, J., Lowe, A., Smith, D., Hegarty, M. J., Creer, S. & Ford, C. R., 2017, Yn: Scientific Reports. 7, 42838.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid