1. Alekseev N.G. Semenov I.N. Urovni poznavatelânoi deyatelânosti pri reshenii tvorcheskikh zadach [Levels of cognitive activity in solving creative problems]. Novye issledovaniya v psikhologii [ New researches in psychology], 1979, no. 2, pp. 3â8.
2. Vasilyuk F.E. Zaretskii V.K. Molostova A.N. Psikhotekhnicheskii metod issledovaniya tvorcheskogo myshleniya [Psychotechnical method of researching creative thinking]. Kulâturno-istoricheskaya psikhologiya [Cultural-historical psychology], 2008. Vol. 4, no. 4, pp. 34â47.
3. Vygotskii L.S. Sobranie Sochinenii: v 6 t. T. 3. Istoriya razvitiya vysshikh psikhicheskikh funktsii [Collected works is 6 vol. Vol. 3. Development of higher mental functions]. Moscow, Pedagogika, 1983, pp. 5â328.
4. Vygotskii L.S. Sobranie Sochinenii: v 6 t. T. 4. Problemy detskoi (vozrastnoi) psikhologii [Collected works is 6 vol. Vol. 4 Issues of child (age) psychology]. Moscow: Pedagogika, 1984, pp. 368.
5. Dunker K. Kachestvennoe (eksperimentalânoe i teoreticheskoe) issledovanie produktivnogo myshleniya [Experimental and theoretical research of creative thinking]. Psikhologiya produktivnogo (tvorcheskogo) myshleniya [Psychology of creative thinking]. Moscow, 1965, pp. 21â86.