by Haugland, R.A., Heckman, J.L.
Published in Molecular and cellular probes (01.12.1998)

by Heckman, J.L, Wang, M.B
Published in Newsletter - Scientists Center for Animal Welfare (USA) (1988)

by Hastings, J.M. (Northern Kentucky Univ., Highland Heights, KY.), Dodson, G.N, Heckman, J.L
Published in Journal of insect behavior (01.11.1994)

by Doubt, T.J., Heckman, J.L.
Published in Computer programs in biomedicine (01.06.1977)