by Pill, W.G, Fieldhouse, D.J
Published in Journal of the American Society for Horticultural Science (01.09.1982)

by Fieldhouse D.J, Sasser M
Published in HortScience (1975)

by Read, P.E, Fieldhouse, D.J
Published in Proc Amer Soc Hort Sci (1970)

by Fieldhouse, D.J, Ratledge, E.L
Published in Del Board Agr Bull (1968)

by Fieldhouse, D.J
Published in Commentarii mathematici Helvetici (1971)

by Read, P.E, Dunham, C.W, Fieldhouse, D.J
Published in Hortscience (1972)