by Atwood, T.C, Weeks, H.P. Jr
Published in Canadian journal of zoology (01.09.2003)

by Lowe, Z.E, Weeks, H.P. Jr, Holt, H.A, Parker, G.R
Published in Native plants journal (01.07.2007)

by Best, L.B, Campa, H, Kemp, K.E, Robel, R.J, Ryan, M.R, Savidge, J.A, Weeks, H.P. Jr, Winterstein, S.R
Published in The American midland naturalist (01.04.1998)

by Jones, R.L, Weeks, H.P. Jr
Published in Biological trace element research (01.06.1998)

by Weeks, H.P. Jr
Published in Research Bulletin - Indiana Agricultural Experiment Station (USA) (01.12.1978)