TY - JOUR AU - Luis Javier Hernández-Paricio TI - Fundamental pro-groupoids and covering projections JO - Fundamenta Mathematicae PY - 1998 SP - 1 EP - 31 VL - 156 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-156-1-1-31/ DO - 10.4064/fm-156-1-1-31 LA - en ID - 10_4064_fm_156_1_1_31 ER -