Tyugashov G S

Publications in Math-Net.Ru

1. $k$-expansion of topological spaces, and convexity
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1999, no. 10,  43–48
2. $P$-stretched spaces
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1990, no. 10,  74–75