by Burt, R, Wilson, M.A, Keck, T.J, Dougherty, B.D, Strom, D.E, Lindahl, J.A
Published in Advances in environmental research : an international journal of research in environmental science, engineering and technology (01.10.2003)

by Keck, T.J, Quimby, W.F, Nielsen, G.A
Published in Soil Science Society of America journal (01.05.1993)

by Keck, T.J, Wagenet, R.J, Campbell, W.F, Knighton, R.E
Published in Soil Science Society of America journal (01.11.1984)