Vietnam Journal of Mathematics
Vietnam Journal of Mathematics > 2014 > 42 > 4 > 467-478
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 71-91
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 57-70
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 139-150
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 151-158
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 93-104
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 121-130
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 105-120
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 1-22
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 159-162
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 23-36
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 173-179
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 131-138
Vietnam Journal of Mathematics > 2015 > 43 > 1 > 163-172
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 403-415
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 229-238
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 215-228
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 283-295
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 357-384
Vietnam Journal of Mathematics > 2015 > 43 > 2 > 323-341