Poplavskaya Lidiya Andreevna

Publications in Math-Net.Ru

1. The structure of the solutions of a two-dimensional periodic differential system. II
   
   Differ. Uravn., 17:3 (1981),  395–410
2. The structure of the solutions of a two-dimensional periodic differential system. I
   
   Differ. Uravn., 16:9 (1980),  1559–1580