On antipodal sets on the sphere and on continuous involutions
Some remarks on Borsuk generalized cohomotopy groups
Some consequences of the Vietoris Mapping Theorem
A note of correction to the paper "Some consequences of the Vietoris Mapping Theorem"
Generalized cohomotopy groups as limit groups
On simple regular mappings
D-spaces and fixed point theorems
On labil and stabil points
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