Vietnam Journal of Mathematics
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 297-321
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 207-213
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 385-401
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 439-458
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 195-205
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 471-486
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 417-437
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 257-281
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 459-469
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 487-500
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 501-513
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 525-539
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 541-549
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 629-633
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 571-582
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 515-523
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 635-644
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 557-569
Vietnam Journal of Mathematics > 2015 > 43 > 3 > 583-594