1. Hybridisation in the genera Vulpia and Festuca: the production of artificial F1 plants;Barker;Nordic J. Bot.,1982
2. Cotton , R. 1974 Cytotaxonomy of the genus Vulpia Ph.D. thesis
3. Hybrids between Festuca rubra L. sensu lato and Vulpia membranacea (L.) Dumort;Stace;Watsonia,1974
4. Willis , A. J. 1975 Festuca L. x Vulpia C.C. Gmel. = x Festulpia Melderis ex Stace & Cotton Stace , C. A. Hybridization and the flora of the British Isles 552 554