TY - JOUR AU - M. Reichaw TI - On a theorem of W. Hurewicz on mappings which lower dimension JO - Colloquium Mathematicum PY - 1972 SP - 323 EP - 329 VL - 26 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-26-1-323-329/ DO - 10.4064/cm-26-1-323-329 LA - en ID - 10_4064_cm_26_1_323_329 ER -