TY - JOUR AU - Kenneth Millett TI - Homotopy sequences of fibrations JO - Fundamenta Mathematicae PY - 1973 SP - 49 EP - 62 VL - 79 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-79-1-49-62/ DO - 10.4064/fm-79-1-49-62 LA - en ID - 10_4064_fm_79_1_49_62 ER -