Vietnam Journal of Mathematics
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 397-408
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 459-476
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 333-349
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 351-368
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 451-457
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 409-423
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 519-539
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 507-517
Vietnam Journal of Mathematics > 2017 > 45 > 3 > 493-506
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 639-649
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 669-679
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 747-761
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 695-711
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 721-736
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 625-638
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 609-618
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 619-623
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 541-559
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 561-573
Vietnam Journal of Mathematics > 2017 > 45 > 4 > 585-608