Chan Fyong Zung

Publications in Math-Net.Ru

1. Homotopy groups of the $3$-groupoid of regular Ann-categories
   
   Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 1994, no. 5,  3–6
2. Equivalence between the regular Ann-category and the strict Ann-category
   
   Uspekhi Mat. Nauk, 47:2(284) (1992),  207–208