by Kalachnik, John E, Hanzel, Thomas E, Sevenich, Robert, Harder, Stuart R
Published in Journal of autism and developmental disorders (01.06.2003)

by Kalachnik, John E, Hanzel, Thomas E, Sevenich, Robert, Harder, Stuart R
Published in American journal of mental retardation (01.09.2002)

by Mayhew, L A, Hanzel, T E, Ferron, F R, Kalachnik, J E, Harder, S R
Published in The journal of nervous and mental disease (01.11.1992)

by Alferink, Larry A., Bartness, Tim J., Harder, Stuart R.
Published in Journal of the experimental analysis of behavior (01.01.1980)

by KALACHNIK, John E, HANZEL, Thomas E, SEVENICH, Robert, HARDER, Stuart R
Published in Journal of autism and developmental disorders (2003)

by Harder, Stuart R
Published in Research in Developmental Disabilities (1987)

by Hanzel, Thomas E., Kalachnik, John E., Harder, Stuart R.
Published in Research in developmental disabilities (1992)

by Harder, Stuart R., Kalachnik, John E., Jensen, Marilyn A., Feltz, Jeffrey
Published in Research in developmental disabilities (1987)

by Kalachnik, John E
Published in Mental retardation (Washington) (01.12.1995)