by Hamby, R.K, Zimmer, E.A
Published in Plant systematics and evolution (01.01.1988)

by Hamby, R.K., Liu, Y.A.
Published in Powder technology (1991)

by Penny, D, Hendy, M.D, Zimmer, E.A, Hamby, R.K
Published in Australian systematic botany (1993)

by Hamby, R.K, Habbal, M.K, Roos, J.W, Ristroph, D.L
Published in Transactions of the ASAE (01.11.1986)