Công bố năm 2000
1. Phạm Trà Ân, On an infinite hierarchy of Petri net languages, Vietnam Journal of Mathematics, 28 (2000), 209 – 216.
2. Hà Huy Bảng, Hoang Mai Le, An inequality of Kolmogorov and Stein, Bulletin of the Australian Mathematical Society, 61 (2000), 153 - 159
3. Phạm Trà Ân, On growth function of Petri net, Acta Mathematica Vietnamica, 25 (2000), 347 - 357
4. Trần Thị Lan Anh, Some common fixed point theorems for mappings in metric and Menger spaces, Vietnam Journal of Mathematics, 28 (2000), 133 - 142.
