1. 2021
2. Cyhoeddwyd

   A warm Jet in a cold ocean

   MacKinnon, J., Lenn, Y-D., Simmons, H. L., Hargrove, J., Thomson, J., Peacock, T., Alford, M. H., Barton, B. I., Boury, S., Brenner, S. D., Couto, N., Danielson, S. L., Fine, E. C., Graber, H. C., Guthrie, J., Hopkins, J. E., Jayne, S. R., Jeon, C., Klenz, T., Lee, C. M., Lucas, A. J., Lund, B., Mahaffey, C., Norman, L., Rainville, L., Smith, M. M., Thomas, L. N., Torres-Valdes, S. & Wood, K. R., 23 Ebr 2021, Yn: Nature Communications. 12, 1, t. 2418

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

3. Cyhoeddwyd

   Does Circular Reuse of Chickpea Cooking Water to Produce Vegan Mayonnaise Reduce Environmental Impact Compared with Egg Mayonnaise?

   Saget, S., Costa, M., Styles, D. & Williams, M., 23 Ebr 2021, Yn: Sustainability. 13, 9, e4726.

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

4. Cyhoeddwyd

   Middle Pleistocene genome calibrates a revised evolutionary history of extinct cave bears

   Barlow, A., Paijmans, J., Alberti, F., Gasparyan, B., Bar-Oz, G., Pinhasi, R., Foronova, I., Puzachenko, A. Y., Pacher, M., Dalén, L., Baryshnikov, G. & Hofreiter, M., 26 Ebr 2021, Yn: Current Biology.

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

5. Cyhoeddwyd

   NFTs are much bigger than an art fad – here’s how they could change the world

   Bowden, J. & Jones, E., 26 Ebr 2021, The Conversation.

   Allbwn ymchwil: Cyfraniad at gyhoeddiad arbenigol › Erthygl

6. Cyhoeddwyd

   Boundary organising in healthcare: theoretical perspectives, empirical insights and future prospects

   Kislov, R., Harvey, G. & Jones, L., 27 Ebr 2021, Yn: Journal of Health Organization and Management. 35, 2, t. 133-140

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

7. Cyhoeddwyd

   COSMOS-UK: national soil moisture and hydrometeorology data for environmental science research

   Cooper, H. M., Bennett, E., Blake, J., Blyth, E., Boorman, D., Cooper, E., Evans, J., Fry, M., Jenkins, A., Morrison, R., Rylett, D., Stanley, S., Szczykulska, M., Trill, E., Antoniou, V., Askquith-Ellis, A., Ball, L., Brooks, M., Clarke, M. A., Cowan, N., Cumming, A., Farrand, P., Hitt, O., Lord, W., Scarlett, P., Swain, O., Thornton, J., Warwick, A. & Winterbourn, J. B., 28 Ebr 2021, Yn: Earth System Science Data. 13, 4, t. 1737-1757

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

8. Cyhoeddwyd

   Insight into the introduction of domestic cattle and the process of Neolithization to the Spanish region Galicia by genetic evidence

   Gurke, M., Vidal-Gorosquieta, A., Paijmans, J., Wecek, K., Barlow, A., Gonzalez-Fortes, G., Hartmann, S., Grandal-d'Anglade, A. & Hofreiter, M., 28 Ebr 2021, Yn: PLoS ONE.

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

9. Cyhoeddwyd

   The role of orthographic neighbourhood effects in lateralized lexical decision: a replication study and meta-analysis

   Parker, A. J., Egan, C., Grant, J. H., Harte, S., Hudson, B. T. & Woodhead, Z. V. J., 28 Ebr 2021, Yn: PeerJ. 9, e11266.

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

10. Cyhoeddwyd

    Towards complete and error-free genome assemblies of all vertebrate species

    Rhie, A., McCarthy, S. A., Fedrigo, O., Damas, J., Formenti, G., Koren, S., Uliano-Silva, M., Chow, W., Fungtammasan, A., Kim, J., Lee, C., Ko, B. J., Chaisson, M., Gedman, G. L., Cantin, L. J., Thibaud-Nissen, F., Haggerty, L., Bista, I., Smith, M., Haase, B., Mountcastle, J., Winkler, S., Paez, S., Howard, J., Vernes, S. C., Lama, T. M., Grutzner, F., Warren, W. C., Balakrishnan, C. N., Burt, D., George, J. M., Biegler, M. T., Iorns, D., Digby, A., Eason, D., Robertson, B., Edwards, T., Wilkinson, M., Turner, G., Meyer, A., Kautt, A. F., Franchini, P., Detrich, H. W., Svardal, H., Wagner, M., Naylor, G. J. P., Pippel, M., Malinsky, M., Mooney, M., Simbirsky, M., Hannigan, B. T., Pesout, T., Houck, M., Misuraca, A., Kingan, S. B., Hall, R., Kronenberg, Z., Sović, I., Dunn, C., Ning, Z., Hastie, A., Lee, J., Selvaraj, S., Green, R. E., Putnam, N. H., Gut, I., Ghurye, J., Garrison, E., Sims, Y., Collins, J., Pelan, S., Torrance, J., Tracey, A., Wood, J., Dagnew, R. E., Guan, D., London, S. E., Clayton, D. F., Mello, C. V., Friedrich, S. R., Lovell, P. V., Osipova, E., Al-Ajli, F. O., Secomandi, S., Kim, H., Theofanopoulou, C., Hiller, M., Zhou, Y., Harris, R. S., Makova, K. D., Medvedev, P., Hoffman, J., Masterson, P., Clark, K., Martin, F., Howe, K., Flicek, P., Walenz, B. P., Kwak, W., Clawson, H., Diekhans, M., Nassar, L., Paten, B., Kraus, R. H. S., Crawford, A. J., Gilbert, M. T. P., Zhang, G., Venkatesh, B., Murphy, R. W., Koepfli, K-P., Shapiro, B., Johnson, W. E., Di Palma, F., Marques-Bonet, T., Teeling, E. C., Warnow, T., Graves, J. M., Ryder, O. A., Haussler, D., O’Brien, S. J., Korlach, J., Lewin, H. A., Howe, K., Myers, E. W., Durbin, R., Phillippy, A. M. & Jarvis, E. D., 28 Ebr 2021, Yn: Nature. 592, 7856, t. 737-746 10 t.

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

11. Cyhoeddwyd

    Concerns about reported harvests in European forests

    Palahí, M., Valbuena, R., Senf, C., Acil, N., Pugh, T. A. M., Sadler, J., Seidl, R., Potapov, P., Gardiner, B., Hetemäki1, L., Chirici, G., Francini, S., Hlásny, T., Lerink, B. J. W., Olsson, H., Olabarria, J. R. G., Ascoli, D., Asikainen, A., Bauhus, J., Berndes, G., Donis, J., Fridman, J., Hanewinkel, M., Jactel, H., Lindner, M., Marchetti, M., Marušák, R., Sheil, D., Tomé, M., Trasobares, A., Verkerk, P. J., Korhonen, M. & Nabuurs, G-J., 29 Ebr 2021, Yn: Nature. 592, 7856, t. E15-E17

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

12. Cyhoeddwyd

    Impact of climate change on abstraction for hydropower and public water supply in Wales, UK

    Dallison, R. & Patil, S., 29 Ebr 2021.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur › adolygiad gan gymheiriaid

13. Cyhoeddwyd

    Animal Reidentification using Restricted Set Classification

    Kuncheva, L., Mai 2021, Yn: Ecological Informatics. 62, 101225.

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

14. Cyhoeddwyd

    Ben Mercer, Student Revolt in 1968: France, Italy and West Germany

    Sedlmaier, A., Mai 2021, Yn: German Studies Review. 44, 2, t. 429-431 3 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Adolygiad Llyfr/Ffilm/Erthygl › adolygiad gan gymheiriaid

15. Cyhoeddwyd

    Biodiversity conservation as a promising frontier for behavioural science

    Nielsen, K. S., Marteau, T. M., Bauer, J. M., Bradbury, R. B., Broad, S., Burgess, G., Burgman, M. A., Byerly, H., Clayton, S., Espelosin, D., Ferraro, P. J., Fisher, B., Garnett, E. E., Jones, J. P. G., Otieno, M., Polasky, S., Ricketts, T. H., Trevelyan, R., van der Linden, S., Verissimo, D. & Balmford, A., Mai 2021, Yn: Nature Human Behaviour. 5, 5, t. 550-556

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

16. Cyhoeddwyd

    Capitalismo, nación y corrosión social: notas sobre el “antisemitismo de izquierda"

    Stoetzler, M., Mai 2021, Yn: Bajo el Volcan. 4, t. 327-359

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl

17. Cyhoeddwyd

    Corporate support for black lives matter: Determinants and effects on retail investors

    Brownen-Trinh, R. & Orujov, A., Mai 2021.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur › adolygiad gan gymheiriaid

18. Cyhoeddwyd

    Doing more with nuclear

    Rushton, M. & Lee, B., Mai 2021, Yn: Energy World. May 2021, t. 22-24 3 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl

19. Cyhoeddwyd

    Early indications of success rehabilitating an underperforming teak ( Tectona grandis ) plantation in Panama through enrichment planting

    Marshall, A., McLaughlin, B. P., Zerr, C., Yanguas-Fernández, E. & Hall, J. S., Mai 2021, Yn: New Forests. 52, 3, t. 377-395 19 t.

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

20. Cyhoeddwyd

    Efrydiau Dynion: Adolygiad o 'Rheswm a Rhyddid' gol. E. Gwynn Matthews

    Jones, A. L., Mai 2021, Yn: O'r Pedwar Gwynt. t. 39 1 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Adolygiad Llyfr/Ffilm/Erthygl

21. Cyhoeddwyd

    Fruit trees and herbaceous plants increase functional and phylogenetic diversity of birds in smallholder rubber plantations

    Jayathilake, H. M., Warren-Thomas, E., Nelson, L., Dolman, P., Bumrungsri, S., Juthong, W., Carrasco, L. R. & Edwards, D. P., Mai 2021, Yn: Biological Conservation. 257, 109140.

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

22. Cyhoeddwyd

    Individual differences in voice adaptability are specifically linked to voice perception skill

    Bestelmeyer, P. & Mühl, C., Mai 2021, Yn: Cognition. 210, 104582.

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

23. Cyhoeddwyd

    Management education through autoethnography

    Sambrook, S., Mai 2021, Yn: Human Resource Development International. 24, 3, t. 244-261 18 t.

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

24. Cyhoeddwyd

    Methodological issues in literacy research across languages: Evidence from alphabetic orthographies

    Papadopoulos, T. C., Csepe, V., Aro, M., Caravolas, M., Diakidoy, I-A. & Olive, T., Mai 2021, Yn: Reading Research Quarterly. 56, S1, t. S351-S370 20 t.

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

25. Cyhoeddwyd

    Sequential aiming in pairs: the multiple levels of joint action

    Roberts, J. W., Maiden, J. & Lawrence, G. P., Mai 2021, Yn: Experimental Brain Research. 239, 5, t. 1479-1488 10 t.

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

26. Cyhoeddwyd

    The Impossible Clinic. A critical sociology of Evidence‐Based Medicine.

    Jones, L., Mai 2021, Yn: Sociology of Health and Illness. 43, 4, t. 1073-1074

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Adolygiad Llyfr/Ffilm/Erthygl › adolygiad gan gymheiriaid

27. Cyhoeddwyd

    The microplastisphere: biodegradable microplastics addition alters soil microbial community structure and function

    Zhou, J., Gui, H., Banfield, C., Wen, Y., Dippold, M. A., Charlton, A. & Jones, D. L., Mai 2021, Yn: Soil Biology and Biochemistry. 156, 108211.

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

28. Cyhoeddwyd

    The role of professional elites in healthcare governance: Exploring the work of the medical director

    Jones, L. & Fulop, N., Mai 2021, Yn: Social Science and Medicine. 277, 113882.

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

29. Cyhoeddwyd

    The social determinants of mental health, the pandemic and social justice

    Poole, R. & Nafees, S., Mai 2021, Yn: Arab Journal of Psychiatry. 32, 1, t. 16-20

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

30. Cyhoeddwyd

    Visualisation Data Modelling Graphics (VDMG) at Bangor

    Roberts, J. C., Ritsos, P. D., Kuncheva, L., Vidal, F., Lim, I. S., Ap Cenydd, L., Teahan, W., Mansoor, S., Gray, C. & Perkins, D., Mai 2021. 2 t.

    Allbwn ymchwil: Cyfraniad at gynhadledd › Papur › adolygiad gan gymheiriaid

31. Cyhoeddwyd

    X chromosome-dependent disruption of placental regulatory networks in hybrid dwarf hamsters

    Brekke, T. D., Moore, E. C., Campbell-Staton, S. C., Callahan, C. M., Cheviron, Z. A. & Good, J. M., Mai 2021, Yn: Genetics. 218, 1, iyab043.

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

32. Cyhoeddwyd

    Data-aided Iterative Algorithms for Linearizing IM/DD Optical Transmission Systems

    Hu, S., Zhang, J., Tang, J., Jin, W., Giddings, R. & Qiu, K., 1 Mai 2021, Yn: Journal of Lightwave Technology. 39, 9, t. 2864 - 2872 9 t.

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

33. Cyhoeddwyd

    Early prediction of bumblebee flight task using machine learning

    Morton Williams, S., Aldabashi, N., Palego, C., Woodgate, J., Makinson, J. & Cross, P., 1 Mai 2021, Yn: Computers and Electronics in Agriculture. 184, 11 t., 106065.

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

34. Cyhoeddwyd

    Location, but not defensive genotype, determines ectomycorrhizal community composition in Scots pine (Pinus sylvestris L.) seedlings

    Downie, J., Taylor, A. F. S., Iason, G., Moore, B., Silvertown, J., Cavers, S. & Ennos, R., 1 Mai 2021, Yn: Ecology and Evolution. 11, 9, t. 4826-4842 17 t.

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

35. Cyhoeddwyd

    Minimum Reporting Standards for in vivo Magnetic Resonance Spectroscopy (MRSinMRS): Experts' consensus recommendations

    Experts' Working Group on Reporting Standards for MR Spectroscopy, 1 Mai 2021, Yn: NMR in biomedicine. 34, 5, e4484.

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

36. Cyhoeddwyd

    Rapid gravity flow transformation revealed in a single climbing ripple

    Baas, J. H., Best, J. & Peakall, J., 1 Mai 2021, Yn: Geology. 49, 5, t. 493-497

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

37. Cyhoeddwyd

    Science and theory

    Griffith, G. & Karunavira, NONE., 1 Mai 2021, Essential Resources for Mindfulness Teachers. Crane, R., Karanuvira, K. V. & Griffith, G. (gol.). Routledge, t. 200-213 13 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

38. Cyhoeddwyd

    Surgical microdiscectomy versus transforaminal epidural steroid injection in patients with sciatica secondary to herniated lumbar disc (NERVES): a phase 3, multicentre, open-label, randomised controlled trial and economic evaluation

    Wilby, M. J., Best, A., Wood, E., Burnside, G., Bedson, E., Short, H., Wheatley, D., Hill-McManus, D., Sharma, M., Clark, S., Baranidharan, G., Price, C., Mannion, R., Hutchinson, P. J., Hughes, D., Marson, A. G. & Williamson, P., 1 Mai 2021, Yn: The Lancet Rheumatology. 3, 5, t. e347-e356

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

39. Cyhoeddwyd

    The Mindfulness-Based Interventions: Teaching and Learning Companion (MBI: TLC)

    Griffith, G., Crane, R., Karunavira, NONE. & Koerbel, L., 1 Mai 2021, Essential Resources for Mindfulness Teachers. Crane, R., Karanuvira, K. V. & Griffith, G. (gol.). Routledge, t. 125-148 28 t.

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

40. Cyhoeddwyd

    The Role of Nitroreductases in Resistance to Nitroimidazoles

    Thomas, C. & Gwenin, C. D., 1 Mai 2021, Yn: Biology. 10, 5

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

41. Cyhoeddwyd

    Volatile organic compounds (VOCs) allow sensitive differentiation of biological soil quality

    Brown, R., Ian D. Bull, Toby Journeaux, Chadwick, D. & Jones, D. L., 1 Mai 2021, Yn: Soil Biology and Biochemistry. 156, 108187.

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

42. Cyhoeddwyd

    Environmental DNA provides higher resolution assessment of riverine biodiversity and ecosystem function via spatio-temporal nestedness and turnover partitioning

    Seymour, M., Edwards, F. K., Cosby, B. J., Bista, I., Scarlett, P. M., Brailsford, F., Glanville, H., de Bruyn, M., Carvalho, G. & Creer, S., 3 Mai 2021, Yn: Communications Biology. 4, 1, 512.

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

43. Cyhoeddwyd

    A phase 2 clinical trial of the PPH Butterfly, a new device to ‘turn off the tap’ of Post-Partum Hemorrhage.

    Weeks, A., Cunningham, C., Taylor, W., Rosala-Hallas, A., Watt, P., Bryning, L., Ezeofor, V., Cregan, L., Hayden, E., Lambert, D., Bedwell, C., Lane, S., Fisher, T., Edwards, R. T. & Lavender, T., 4 Mai 2021, Authorea.

    Allbwn ymchwil: Papur gweithio › Papur Gwaith

44. Cyhoeddwyd

    Organic Carbon Linkage with Soil Colloidal Phosphorus at Regional and Field Scales: Insights from Size Fractionation of Fine Particles

    Li, F., Zhang, Q., Klumpp, E., Bol, R., Nischwitz, V., Ge, Z. & Liang, X., 4 Mai 2021, Yn: Environmental Science and Technology. 55, 9, t. 5815-5825 11 t.

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

45. Cyhoeddwyd

    Corneal sensitivity is required for orientation in free-flying migratory bats

    Lindecke, O., Holland, R., Petersons, G. & Voigt, C. C., 5 Mai 2021, Yn: Communications Biology. 4, 1, 522.

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

46. Cyhoeddwyd

    Kitty Clive, or The Fair Songster

    Cunningham, J., 5 Mai 2021, Yn: Eighteenth Century Studies. 54, 3, t. 734-736 3 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Adolygiad Llyfr/Ffilm/Erthygl › adolygiad gan gymheiriaid

47. Cyhoeddwyd

    Sympatric cases of squirrelpox in red and grey squirrels

    Shuttleworth, C., Everest, D., Wood, C. & Holmes, J. P., 7 Mai 2021, Yn: The Veterinary record. 188, 9, t. 358

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

48. Cyhoeddwyd

    Polyphenolic Profiling of Green Waste Determined by UPLC-HDMS E

    Potter, C. M. & Jones, D. L., 9 Mai 2021, Yn: Processes. 9, 5, e824.

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

49. Cyhoeddwyd

    African and Asian leopards are highly differentiated at the genomic level

    Paijmans, J., Barlow, A., Becker, M. S., Cahill, J. A., Fickel, J., Forster, D. W. G., Gries, K., Hartmann, S., Havmoller, R. W., Henneberger, K., Kern, C., Kitchener, A. C., Lorenzen, E. D., Mayer, F., O'Brien, S. J., von Seth, J., Sinding, M-H. S., Spong, G., Uphyrkina, O., Wachter, B., Westbury, M. V., Dalén, L., Bhak, J., Manica, A. & Hofreiter, M., 10 Mai 2021, Yn: Current Biology.

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

50. Cyhoeddwyd

    Ancient and modern stickleback genomes reveal the demographic constraints on adaptation

    Kirch, M., Romundset, A., Gilbert, M. T. P., Jones, F. C. & Foote, A. D., 10 Mai 2021, Yn: Current Biology. 31, 9, t. 2027-2036

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

51. Cyhoeddwyd

    Design and Operation of Empirical Manganese-Removing Bioreactors and Integration into a Composite Modular System for Remediating and Recovering Metals from Acidic Mine Waters

    Santos, A. L. & Johnson, B., 10 Mai 2021, Yn: Applied Sciences. 11, 9, 4287.

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