Vietnam Journal of Mathematics
Vietnam Journal of Mathematics > 2016 > 44 > 1 > 103-131
Vietnam Journal of Mathematics > 2016 > 44 > 1 > 181-202
Vietnam Journal of Mathematics > 2018 > 46 > 4 > 837-861
Vietnam Journal of Mathematics > 2018 > 46 > 4 > 1089-1113
Vietnam Journal of Mathematics > 2018 > 46 > 4 > 863-882
Vietnam Journal of Mathematics > 2019 > 47 > 3 > 617-638
Vietnam Journal of Mathematics > 2019 > 47 > 3 > 757-768
Vietnam Journal of Mathematics > 2019 > 47 > 3 > 579-597