共 4 条
[1]
Agaev G.N., 1981, MULTIPLICATIVE SYSTE
[2]
Efimov A V, 1966, MAT SBORNIK, V69, P354
[3]
Rubinstein A I, 1978, MAT ZAMETKI, V23, P379
[4]
RUBINSTEIN AI, 1983, IZV VYSSH UCHEBN ZAV, V252, P61