by Patto P.M, Clement C.R, Forbes T.J
Published in Permanent Grassland Studies (UK). no. 2 (1978)

by Scholefield, D., Patto, P.M., Hall, D.M.
Published in Soil & tillage research (1985)

by Scholefield, D. (Grassland Research Inst., Maidenhead, Berkshire (UK)), Patto, P.M, Hall, D.M
Published in Soil and Tillage Research (Netherlands) (1985)