TY - JOUR AU - C. Bessaga TI - On linear operators and functors extending pseudometrics JO - Fundamenta Mathematicae PY - 1993 SP - 101 EP - 122 VL - 142 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-142-2-101-122/ DO - 10.4064/fm-142-2-101-122 LA - en ID - 10_4064_fm_142_2_101_122 ER -