Asendorpf, Jens B. MPI for Psychological Research (Munich, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Asendorpf, J. B. (1985). Cics - the Munich Contact Initiation Coding System for Children. Cahiers de Psychologie Cognitive, 5(3-4), 400-400.