by Beckers, H., Brauer, D.J., Bürger, H., Wilke, C.J.
Published in Journal of organometallic chemistry (1988)

by Welch, D.A, Samuel, W.M, Wilke, C.J
Published in Canadian journal of zoology (01.09.1991)

by BECKERS, H, BRAUER, D. J, BÜRGER, H, WILKE, C. J
Published in Journal of organometallic chemistry (15.11.1988)

by Welch, D. A., Samuel, W. M., Wilke, C. J.
Published in Journal of wildlife diseases (01.07.1990)