共 18 条
[2]
[Anonymous], 1998, COLLECT MATH
[4]
Betancor J. J., 2000, INTER J MATH MATH SC, V6, P419
[5]
Bramanti M, 1996, B UNIONE MAT ITAL, V10B, P843
[6]
Bramanti M., 1995, Contemp. Math., V189, P81
[9]
GARCIACUERVA J, 1994, P LOND MATH SOC, V69, P605
[10]
Genebashvili I., 1998, PIMAN MONOGR SURVEYS, V92