@article{MM3_2002_6_1_a2, author = {B. Dvalishvili}, title = {The {Strengthening} and {Weakening} {Instrument:} {Comparability} of {Topological} {Spaces}}, journal = {Mathematica Moravica}, pages = {21 - 64}, publisher = {mathdoc}, volume = {6}, number = {1}, year = {2002}, url = {https://geodesic-test.mathdoc.fr/item/MM3_2002_6_1_a2/} }