Vietnam Journal of Mathematics
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 17-23
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 43-49
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 115-120
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 59-80
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 11-16
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 1-10
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 25-42
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 81-96
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 51-58
Vietnam Journal of Mathematics > 2013 > 41 > 1 > 97-113
Vietnam Journal of Mathematics > 2013 > 41 > 2 > 149-160
Vietnam Journal of Mathematics > 2013 > 41 > 2 > 121-134
Vietnam Journal of Mathematics > 2013 > 41 > 2 > 233-244
Vietnam Journal of Mathematics > 2013 > 41 > 2 > 167-179
Vietnam Journal of Mathematics > 2013 > 41 > 2 > 217-232
Vietnam Journal of Mathematics > 2013 > 41 > 2 > 161-166
Vietnam Journal of Mathematics > 2013 > 41 > 2 > 135-148
Vietnam Journal of Mathematics > 2013 > 41 > 2 > 181-215
Vietnam Journal of Mathematics > 2013 > 41 > 3 > 303-312
Vietnam Journal of Mathematics > 2013 > 41 > 3 > 341-352