1. Chickens and children do not an expert make
2. 3 DA Schon .The Reflective Practitioner: How Professionals Think in Action. New York: Basic Books, 1983 .
3. 4 KA Ericsson . The acquisition of expert performance: an introduction to some of the issues . In: Ericsson KA, ed.The Road to Excellence: the Acquisition of Expert Performance in the Arts and Sciences, Sports, and Games. Mahwah: Lawrence Erlbaum Associates, pp. 1-50;1996.