1. 2018
2. Cyhoeddwyd

   Plant-microbe competition: does injection of isotopes of C and N into the rhizosphere effectively characterise plant use of soil N?

   Hill, P. & Jones, D. L., 20 Rhag 2018, Yn: New Phytologist. 221, 2, t. 796–806

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

3. Cyhoeddwyd

   A wide-angle shift-free metamaterial filter design for anti-laser striking application

   Monks, J., Yue, L., Yan, B., Aldred, B., Hurst, A. & Wang, Z., 15 Rhag 2018, Yn: Optics Communications. 429, t. 53-59 7 t.

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

4. Cyhoeddwyd

   Generating long chronologies for lacustrine sediments using luminescence dating: a 250,000 year record from Lake Tana, Ethiopia

   Roberts, H., Bryant, C., Huws, D. & Lamb, H., 15 Rhag 2018, Yn: Quaternary Science Reviews. 202, t. 66-77

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

5. Cyhoeddwyd

   Implications of structural diversity for seasonal and annual carbon dioxide fluxes in two temperate deciduous forests

   Tamrakar, R., Rayment, M. B., Moyano, F., Mund, M. & Knohl, A., 15 Rhag 2018, Yn: Agricultural and Forest Meteorology. 263, t. 465-476

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

6. Cyhoeddwyd

   Evidence for a directed southward autumn migration of nocturnal noctuid moths in central Europe

   Dreyer, D., el Hundi, B., Kishkinev, D., Suchentrunk, C., Campostrini, L., Frost, B., Zechmeister, T. & Warrant, E., 14 Rhag 2018, Yn: Journal of Experimental Biology. 221, jeb179218.

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

7. Cyhoeddwyd

   Satellite and In Situ Observations for Advancing Global Earth Surface Modelling: A Review

   Balsamo, G., Agusti-Parareda, A., Albergel, C., Arduini, G., Beljaars, A., Bidlot, J., Bousserez, N., Boussetta, S., Brown, A., Buizza, R., Buontempo, C., Chevallier, F., Choulga, M., Cloke, H., Cronin, M. F., Dahoui, M., De Rosnay, P., Dirmeyer, P. A., Drusch, M., Dutra, E., Ek, M. B., Gentine, P., Hewitt, H., Keeley, S. P. E., Kerr, Y., Kumar, S., Lupu, C., Mahfouf, J-F., McNorton, J., Mecklenburg, S., Mogensen, K., Munoz-Sabater, J., Orth, R., Rabier, F., Reichle, R., Ruston, B., Pappenberger, F., Sandu, I., Seneviratne, S. I., Tietsche, S., Trigo, I. F., Uijlenhoet, R., Wedi, N., Woolway, R. I. & Zeng, X., 14 Rhag 2018, Yn: Remote Sensing. 10, 12

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

8. Cyhoeddwyd

   Two 1-D Coordination Polymers containing Zinc(II) Hexaborates: [Zn(en){B6O7(OH)6}].2H2O (en = 1,2-diaminoethane) and [Zn(pn){B6O7(OH)6}].1.5H2O (pn = 1,2-diaminopropane)

   Altahan, M., Beckett, M., Coles, S. J. & Horton, P. N., 14 Rhag 2018, Yn: Crystals. 8, 12, 9 t., 470.

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

9. 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

10. Cyhoeddwyd

    Rational truncation of aptamer for cross-species application to detect krait envenomation

    Dhiman, A., Anand, A., Malhotra, A., Khan, E., Santra, V., Kumar, A. & Sharma, T. K., 12 Rhag 2018, Yn: Scientific Reports. 8, 17795.

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

11. Cyhoeddwyd

    Satisfied-defect, unsatisfied-cooperate: An evolutionary dynamics of cooperation led by aspiration

    Lim, I. S. & Wittek, P., 11 Rhag 2018, Yn: Physical Review E - Statistical, Nonlinear and Soft Matter Physics. 98, 6, 062113.

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

12. Cyhoeddwyd

    Can In-Situ Soil Nitrate Measurements Improve Nitrogen-Use Efficiency in Agricultural Systems?

    Jones, D. L., Chadwick, D. R., Rengaraj, S., Wu, D., Williams, A. P., Hill, P. W., Miller, A. J., Lark, R. M., Rosolem, C. A., Damin, V. & Shaw, R., 1 Rhag 2018, Proceedings 1466-1314. International Fertiliser Society, Cyfrol 825. t. 1-32 32 t. 825

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

13. Cyhoeddwyd

    Extent and retreat history of the Barra Fan Ice Stream offshore western Scotland and northern Ireland during the last glaciation

    Callard, S. L., Ó Cofaigh, C., Benetti, S., Chiverrell, R. C., Van Landeghem, K., Saher, M., Gales, J., Small, D., Clark, C., Livingstone, S. J., Fabel, D. & Moreton, S., 1 Rhag 2018, Yn: Quaternary Science Reviews. t. 280-302

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

14. Cyhoeddwyd

    Feeding plasticity more than metabolic rate drives the productivity of economically important filter feeders in response to elevated CO2 and reduced salinity

    Rastrick, S., Graham, H., Strohmeier, T., Whiteley, N. & Strand, Ø., 1 Rhag 2018, Yn: ICES Journal of Marine Science. 75, 6, t. 2117-2128

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

15. Cyhoeddwyd

    Hybrid OFDM-Digital Filter Multiple Access PONs

    Dong, Y., Giddings, R. P. & Tang, J., 1 Rhag 2018, Yn: Journal of Lightwave Technology. 36, 23, t. 5640-5649

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

16. Cyhoeddwyd

    Sensitivity of peatland litter decomposition to changes in temperature and rainfall

    Bell, M., Ritson, J. P., Verhoef, A., Brazier, R. E., Templeton, M. R., Graham, N., Freeman, C. & Clark, J. M., 1 Rhag 2018, Yn: Geoderma. 331, t. 29-37

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

17. Cyhoeddwyd

    DSP-based 40 Gb/s Lane Rate Next Generation Access Networks

    Wei, J., Zhou, J., Giacoumidis, E., Haigh, P. A. & Tang, J., Rhag 2018, Yn: Future Internet. 10, 12, 11 t., 118.

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

18. Cyhoeddwyd

    Efficacy of mitigation measures for reducing greenhouse gas emissions from intensively cultivated peatlands

    Taft, H., Cross, P. & Jones, D. L., Rhag 2018, Yn: Soil Biology and Biochemistry. 127, t. 10-21

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

19. Cyhoeddwyd

    Estimating effective detection area of passive, static acoustic data loggers from playback experiments with cetacean vocalisations

    Nuuttila, H. K., Brundiers, K., Dahne, M., Koblitz, J. C., Thomas, L., Courtene-Jones, W., Evans, P. G. H., Turner, J. R., Bennell, J. & Hiddink, J. G., Rhag 2018, Yn: Methods in Ecology and Evolution. 9, 12, t. 2362-2371

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

20. Cyhoeddwyd

    Evaluating Forest Protection Strategies: A Comparison of Land-Use Systems to Preventing Forest Loss in Tanzania

    Rosa, I., Hopcraft, G. & Rentsch, D., Rhag 2018, Yn: Sustainability. 10, 12, 16 t., 4476.

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

21. Cyhoeddwyd

    Fair and equitable conservation: do we really want it, and if so, do we know how to achieve it?

    Hockley, N., Mandimbiniaina, R. & Rakotonarivo, O. S., Rhag 2018, Yn: Madagascar Conservation and Development. 13, 1

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

22. Cyhoeddwyd

    Implications of variation in local perception of degradation and restoration processes for implementing land degradation neutrality

    Crossland, M., Winowiecki, L., Pagella, T., Hadgu, K. & Sinclair, F., Rhag 2018, Yn: Environmental Development. 28, t. 42-54 12 t.

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

23. Cyhoeddwyd

    Innovating for low‐carbon energy through hydropower: Enabling a conservation charity's transition to a low‐carbon community

    Gallagher, J., Coughlan, P., Williams, A. & McNabola, A., Rhag 2018, Yn: Creativity and innovation management. 27, 4, t. 375-386

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

24. Cyhoeddwyd

    Mind the gap: the use of research in protected area management in Madagascar

    Rafidimanantsoa, H. P., Poudyal, M., Ramamonjisoa, B. S. & Jones, J. P. G., Rhag 2018, Yn: Madagascar Conservation and Development. 13, 1, t. 15-24

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

25. Cyhoeddwyd

    Proteogenomic Analysis of Epibacterium Mobile BBCC367, a Relevant Marine Bacterium Isolated From the South Pacific Ocean

    Matallana-Surget, S., Werner, J., Wattiez, R., Lebaron, K., Intertaglia, L., Regan, C., Morris, J., Teeling, H., Ferrer, M., Golyshin, P., Gerogiorgis, D., Reilly, S. I. & Lebaron, P., Rhag 2018, Yn: Frontiers in Microbiology. 9, 3125.

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

26. Cyhoeddwyd

    Seed predation by insects across a tropical forest precipitation gradient

    Jeffs, C. T., Kennedy, P., Griffith, P., Gripenberg, S., Markesteijn, L. & Lewis, O. T., Rhag 2018, Yn: Ecological Entomology. 43, 6, t. 813-822

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

27. Cyhoeddwyd

    Subcarrier Index-Power Modulated-Optical OFDM with Dual Superposition Multiplexing for Directly Modulated DFB-based IMDD PON Systems

    Chen, L., Halabi, F., Giddings, R. P., Zhang, J. & Tang, J., Rhag 2018, Yn: IEEE Photonics Journal. 10, 6, 7908113.

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

28. Cyhoeddwyd

    The significance of pH in dictating the relative toxicities of chloride and copper to acidophilic bacteria

    Falagan, C. & Johnson, D. B., Rhag 2018, Yn: Research in Microbiology. 169, 10, t. 552-557

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

29. Cyhoeddwyd

    Time-since-invasion increases native mesoherbivore feeding rates on the invasive alga, Sargassum muticum (Yendo) Fensholt

    Kurr, M. & Davies, A. J., Rhag 2018, Yn: Journal of the Marine Biological Association of the United Kingdom. 98, Special Issue 8, t. 1935-1944

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

30. Cyhoeddwyd

    Whole genome sequences of Malawi cichlids reveal multiple radiations interconnected by gene flow

    Malinsky, M., Svardal, H., Tyers, A., Miska, E. A., Genner, M. J., Turner, G. & Durbin, R., Rhag 2018, Yn: Nature Ecology and Evolution. 2, t. 1940-1955

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

31. Cyhoeddwyd

    Mixing and matching: using qualitative methods to improve quantitative impact evaluations (IEs) and systematic reviews (SRs) of development outcomes

    Jimenez, E., Waddington, H., Goel, N., Prost, A., Pullin, A., White, H., Lahiri, S. & Narain, A., 30 Tach 2018, Yn: Journal of Development Effectiveness. 10, 4, t. 400-421

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

32. Cyhoeddwyd

    What can seabirds tell us about the tide?

    Cooper, M., Bishop, C. M., Lewis, M., Bowers, D., Bolton, M., Owen, E. & Dodd, S., 29 Tach 2018, Yn: Ocean Science. 14, 6, t. 1483-1490 7 t.

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

33. Cyhoeddwyd

    Chlorophyll-a in Antarctic landfast sea ice: a first synthesis of historical ice-core data

    Meiners, K. M., Vancoppenolle, M., Carnat, C., Castellani, G., Delille, B., DeLille, D., Dieckmann, G. S., Flores, H., Fripiat, F., Grotti, M., Lange, B. A., Lannuzel, D., Martin, A., McMinn, A., Nomura, D., Peeken, I., Rivaro, P., Ryan, K. G., Stefels, J., Swadling, K. M., Thomas, D., Tison, J-L., van der Merwe, P., van Leeuwe, M. A., Weldrik, C. & Yang, E. J., 25 Tach 2018, Yn: Journal of Geophysical Research: Oceans. 123, 11, t. 8444-8459

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

34. Cyhoeddwyd

    Plant extracts-mediated synthesis of silver nanoparticles for the reduction of organic dyes

    Hamad, F. B., Baxter, S., Thomas, P. J. & Vanitha, P. V., 23 Tach 2018, Nanoscience. Thomas, P. J. & Revaprasadu, N. (gol.). Royal Society of Chemistry, Cyfrol 5. t. 121-131 11 t. (Specialist Periodical Report).

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

35. Cyhoeddwyd

    A Compression-Based Toolkit for Modelling and Processing Natural Language Text

    Teahan, W., 22 Tach 2018, Yn: Information. 9, 294, t. 1-29 29 t., 9, 294.

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

36. Cyhoeddwyd

    Effects of high-sugar grasses and improved manure management on the environmental footprint of milk production at the farm level

    Soteriades, A. D., Gonzalez Mejia, A. M., Styles, D., Foskolos, A., Moorby, J. M. & Gibbons, J. M., 20 Tach 2018, Yn: Journal of Cleaner Production. 202, t. 1241-1252

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

37. Cyhoeddwyd

    Introduction of Coastal Wetlands into the IPCC Greenhouse Gas Inventory Methodological Guidance

    Troxler, T. G., Kennedy, H. A., Crooks, S. & Sutton-Grier, A. E., 20 Tach 2018, A Blue Carbon Primer: The State of Coastal Wetland Carbon Science, Practice and Policy. Windham-Myers, L., Crooks, S. & Troxler, T. G. (gol.). CRC Press, t. 217-234 (CRC Marine Science).

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

38. Cyhoeddwyd

    Mangrove forests can rebound thanks to climate change – it’s an opportunity we must take

    Dunn, C., 20 Tach 2018, The Conversation.

    Allbwn ymchwil: Cyfraniad at gyhoeddiad arbenigol › Erthygl

39. Cyhoeddwyd

    The Calcium Carbonate Cycle in Seagrass Ecosystems

    Kennedy, H. A., Fourqurean, J. W. & Papadimitriou, S., 20 Tach 2018, A Blue Carbon Primer: The State of Coastal Wetland Carbon Science, Practice and Policy. Windham-Myers, L., Crooks, S. & Troxler, T. G. (gol.). CRC Press, t. 107-120 (CRC Marine Science).

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

40. Cyhoeddwyd

    Combining fish and benthic communities into multiple regimes reveals complex reef dynamics

    Donovan, M. K., Friedlander, A. M., Lecky, J., Jouffray, J-B., Williams, G. J., Wedding, L. M., Crowder, L. B., Erickson, A. L., Graham, N. A. J., Gove, J. M., Kappel, C. V., Karr, K., Kittinger, J. N., Norström, A. V., Nyström, M., Oleson, K. L. L., Stamoulis, K. A., White, C., Williams, I. D. & Selkoe, K. A., 16 Tach 2018, Yn: Scientific Reports. 8, 16943.

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

41. Cyhoeddwyd

    Analytical Solution of Stage-dependent Bit Resolution of Full Parallel Variable Point FFTs for Real-time DSP Implementation

    Zhang, J., Wang, J., Giddings, R., Zhang, Q., Peng, J., Chen, J. & Tang, J., 15 Tach 2018, Yn: Journal of Lightwave Technology. 36, 22, t. 5177-5187

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

42. Cyhoeddwyd

    Annular Nuclear Fuel Pellets with Discrete Burnable Absorber Pins

    Middleburgh, S., 15 Tach 2018

    Allbwn ymchwil: Patent

43. Cyhoeddwyd

    A nuclear fuel pellet, a fuel rod, and a fuel assembly

    Middleburgh, S. & Puide, M., 14 Tach 2018

    Allbwn ymchwil: Patent

44. Cyhoeddwyd

    Tolerating tigers: Gaining local and spiritual perspectives on human-tiger interactions in Sumatra

    McKay, J., St John, F. A. V., Harihar, A., Martyr, D., Leader-Williams, N., Milliyanawati, B., Agustin, I., Anggriawan, Y., Karlina, K., Kartika, K., Mangunjaya, F., Struebig, M. & Linkie, M., 14 Tach 2018, Yn: PLoS ONE.

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

45. Cyhoeddwyd

    Ensuring No Net Loss for people as well as biodiversity: good practice principles

    Bull, J. W., Baker, J., Jones, J. P. G. & Milner-Gulland, E. J., 6 Tach 2018, Yn: SocArXiv.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl

46. Cyhoeddwyd

    Screening and Characterization of Novel Polyesterases from Environmental Metagenomes with High Hydrolytic Activity against Synthetic Polyesters

    Hajighasemi, M., Tchigvintsev, A., Nocek, B., Flick, R., Popovic, A., Hai, T., Khusnutdinova, A. N., Brown, G., Xu, X., Cui, H., Anstett, J., Chernikova, T., Bruls, T., Le Paslier, D., Yakimov, M. M., Joachimiak, A., Golyshina, O., Savchenko, A., Golyshin, P., Edwards, E. A. & Yakunin, A. F., 6 Tach 2018, Yn: Environmental Science and Technology. 52, 21, t. 12388-12401

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

47. Cyhoeddwyd

    Gradients in primary production predict trophic strategies of mixotrophic corals across spatial scales

    Fox, M. D., Williams, G. J., Johnson, M. D., Radice, V. Z., Zgliczynski, B. J., Kelly, E. L. A., Rohwer, F. L., Sandin, S. A. & Smith, J. E., 5 Tach 2018, Yn: Current Biology. 28, 21, t. 3355-3363

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

48. Cyhoeddwyd

    Optimising the detection of marine taxonomic richness using environmental DNA metabarcoding: the effects of filter material, pore size and extraction method

    Deiner, K., Lopez, J., Bourne, S., Holman, L. E., Seymour, M., Grey, E. K., Lacoursiere-Roussel, A., Li, Y., Renshaw, M. A., Pfrender, M. E., Rius, M., Bernatchez, L. & Lodge, D. M., 2 Tach 2018, Yn: Metabarcoding and Metagenomics. 2, 15 t., e28963.

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

49. Cyhoeddwyd

    Age and growth rate estimations of the commercially fished gastropod Buccinum undatum

    Hollyman, P. R., Chenery, S. R. N., Leng, M. J., Laptikhovsky, V. V., Colvin, C. N. & Richardson, C. A., 1 Tach 2018, Yn: ICES Journal of Marine Science. 75, 6, t. 2129-2144 16 t.

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

50. Cyhoeddwyd

    Assessing the potential of steel as a substrate for building integrated photovoltaic applications

    Kettle, J., Hughes, L., Bristow, N., Korochkina, T., Sanchez, P., Gomez, D. & Gethin, D., 1 Tach 2018, Yn: Applied Energy. 229, t. 209-223

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

51. Cyhoeddwyd

    Biodiversity increases and decreases ecosystem stability

    Pennekamp, F., Pontarp, M., Tabi, A., Altermatt, F., Alther, R., Choffat, Y., Fronhofer, E. A., Ganesanandamoorthy, P., Garnier, A., Griffiths, J. I., Greene, S., Horgan, K., Massie, T. M., Machler, E., Palamara, G. M., Seymour, M. & Petchey, O. L., 1 Tach 2018, Yn: Nature. 563, t. 109-112

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