共 12 条
[1]
Aktan N, 2008, TURK J MATH, V32, P127
[2]
Bejan C.L., 2005, KODAI MATH J, V28, P131, DOI [10.2996/kmj/1111588042, DOI 10.2996/KMJ/1111588042]
[3]
Bejancu A., 1986, MATH ITS APPL, V23
[4]
Calin C., 1998, THESIS
[5]
Duggal K.L., 1996, MATH ITS APPL, V364
[6]
Duggal K.L., 2007, INT J MATH MATH SCI, V2007
[7]
Duggal K.L., 2003, KODAI MATH J, V26, P49
[9]
Gupta R. S., 2010, INT J CONT MATH SCI, V5, P475
[10]
Kenmotsu K., 1972, TOHOKU MATH J, V24, P93