共 24 条
[2]
Azam A, J MATH STAT IN PRESS
[3]
Azam A, INDIAN J PURE UNPUB
[8]
Chatterjea S.K., 1972, C. R. Acad. Bulg. Sci, V25, P727, DOI [10.1501/Commua1_0000000548, DOI 10.1501/COMMUA1_0000000548]
[9]
Flores HR, 1998, APPL MATH LETT, V4, P33