1. Confluent mappings and unicoherence of continua;Charatonik;Fund. Math.,1964
2. A continuum X which has no confluent Whitney map for 2X;Charatonik;Proc. Amer. Math. Soc.,1984
3. Ri-continua and hyperspaces;Charatonik;Topology Appl.,1986
4. An open Whitney map for the hyperspace of the circle;Charatonik,1986
5. Ri-continua and contractibility;Czuba,1980