Publications
Veer, R. van der. 1999. Lev S. Vygotsky. In Östman, Jan-Ola, Jef Verschueren, Jan Blommaert and Chris Bulcaen, eds. Handbook of Pragmatics. 1997 Installment. John Benjamins.
Wertsch, James V. 1983. The role of semiosis in L.S. Vygotsky's theory of human cognition. In Bain, Bruce, ed. The sociogenesis of language and human conduct. Plenum. pp. 17–31.