1. Brušlinskij, A. V. (1982). Myšlennie: Process, dejatel’nost’, obščenie [Thinking: Process, activity and communication]. Moscow: Izd-vo Nauka.
2. Brušlinskij, A. V., & Polikarpov, V. A. (1990). Myšlenie i obščenie [Thinking and communicating]. Minsk: Universitetskoe Izd-vo.
3. Burghardt, G. M. (2011). Defining and recognizing play. In A. D. Pellegrini (Ed.), The Oxford handbook of the development of play (pp. 9–18). New York: Oxford University Press.
4. Carpay, J. A. M., & van Oers, B. (1993). Didaktičeskie modeli i problema obučajuščej diskussii. Voprosy Psichologii, 4, 20–26.
5. Carpay, J. A. M., & van Oers, B. (1999). Didactic models and the problem of intertextuality and polyphony. In Y. Engeström, R. Miettinen, & R.-R. Punamäki (Eds.), Perspectives on activity theory (pp. 298–313). Cambridge, MA: Cambridge University Press.