Hacettepe Journal of Mathematics and Statistics
521-533
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
Maozu Lu, Gang Yu, Weiguo Wang, Shaoping Wang
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
Ekpenyong Emmanuel John, Enang Ekaette Inyang