Shvachkin, N. K. (1948). Razvitie fonematicheskogo vosprijatija rechi v rannem detstve [Development of phonematic speech perception in early childhood]. Izvestija Akademji Pedagogicheckikh Nauk RSFSR, 13, 101-132. [FULLTEXT]
Shvachkin, N. K. (1948). Razvitie fonematicheskogo vosprijatija rechi v rannem detstve [Development of phonematic speech perception in early childhood]. Izvestija Akademji Pedagogicheckikh Nauk RSFSR, 13, 101-132. [FULLTEXT]