I. Hilton

Social networks and methadone treatment outcome: the costs and benefits of social ties.

F. Quitkin, E. Nunes, L. Goehl, 1993, The American journal of drug and alcohol abuse.

Differences in the behavior of mothers toward first- and later-born children.

I. Hilton, Irma Hilton, 1967, Journal of personality and social psychology.

The measurement of social expectations and their development in children.

R. Epstein, B. Seegmiller, M. Murphy, 1969, Monographs of the Society for Research in Child Development.