共 16 条
[1]
[Anonymous], 1969, TOPOLOGY, DOI [DOI 10.1016/0040-9383(69)90018-4, 10. 1016/0040-9383(69)90018-4]
[2]
BROCKER T, 1975, LONDON MATHEMATICAL
[3]
FLAVELL JH, 1963, DEVELOPMENTAL PSYCHO
[4]
Furth H., 1981, PIAGET KNOWLEDGE, V2nd
[6]
Littlewood J., 1968, HEATH MATH MONOGRAPH, V37
[7]
PIAGET J, 1971, BIOLOGY KNOWLEDGE
[8]
Piaget J, 1963, ORIGINS INTELLIGENCE
[9]
SAARI DG, 1976, MODELS LEARNING MATH, P121
[10]
SIBUYA Y, 1960, NATUR SCI REP OCHANI, V11, P1