共 14 条
[1]
Bell H. E., 1988, INT J MATH SCI, V11, P239
[2]
ON RINGS WITH ENGEL CYCLES
[J].
CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES,
1991, 34 (03)
:295-300
[3]
Bell HE., 1990, INT J MATH MATH SCI, V13, P535, DOI [10.1155/S0161171290000771, DOI 10.1155/S0161171290000771]
[4]
BELL HE, 1992, RESULTS MATH, V21, P264
[7]
KIM PS, 1991, HOUSTON J MATH, V17, P429