TY - JOUR AU - B. Dvalishvili TI - The Strengthening and Weakening Instrument: Comparability of Topological Spaces JO - Mathematica Moravica PY - 2002 SP - 21 EP - 64 VL - 6 IS - 1 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/MM3_2002_6_1_a2/ ID - MM3_2002_6_1_a2 ER -