Karklin' I P

Publications in Math-Net.Ru

1. Singularity of an orbit that contains a singular point
   
   Differ. Uravn., 11:8 (1975),  1506–1507
2. Topological equivalence of linear systems of Pfaffian equations in neighborhoods of their one-dimensional closed characteristics
   
   Differ. Uravn., 8:11 (1972),  1943–1949
3. The topological equivalence of systems of total differential equations in neighborhoods of closed trajectories
   
   Differ. Uravn., 3:9 (1967),  1495–1507