共 28 条
[12]
Gelman R., 1978, CHILDS UNDERSTANDING
[13]
Gelman R., 1986, CONCEPTUAL PROCEDURA, P29
[14]
GRECO P., 1962, STRUCTURES NUMERIQUE, VXIII
[15]
Harris P, 1975, J CHILD LANG, V2, P143, DOI [10.1017/S0305000900000933, DOI 10.1017/S0305000900000933]
[16]
HOLLANDER M, 1973, NONPARAMETRIC STATIS
[20]
Saxe G. B., 1987, MONOGRAPHS SOC RES C, V52