Edelstein, Wolfgang Max Planck Institute for Human Development, Max Planck Society;
Lange-Küttner, C., & Edelstein, W. (1995). The contribution of social factors to the development of graphic competence. In C. Lange-Küttner, & G. V. Thomas (Eds.), Drawing and looking (pp. 159-172). New York: Harvester Wheatsheaf.