TY - JOUR AU - Hans Havlicek AU - Peter Å emrl TI - From geometry to invertibility preservers JO - Studia Mathematica PY - 2006 SP - 99 EP - 109 VL - 174 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm174-1-8/ DO - 10.4064/sm174-1-8 LA - en ID - 10_4064_sm174_1_8 ER -