TY - JOUR AU - Kalina, Martin TI - Nearness relations in linear spaces JO - Kybernetika PY - 2004 SP - 441 EP - 458 VL - 40 IS - 4 UR - http://geodesic.mathdoc.fr/item/KYB_2004_40_4_a2/ LA - en ID - KYB_2004_40_4_a2 ER -