G. Krampen

Motivation in the treatment of alcoholism.

G. Krampen, 1989, Addictive behaviors.

Generalized expectations of drug-delinquents, other delinquents, and a control sample.

A. von Eye, G. Krampen, 1984, Addictive behaviors.

Differential Effects of Teacher Comments G / inter Krampen

G. Krampen, 2001 .