TY - JOUR AU - Maxime BĂ´cher TI - Collineation as a Mode of Motion. JO - Bulletin of the New York Mathematical Society PY - 1891 SP - 225 EP - 231 VL - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/BNYMS_1891__1_186486/ ID - BNYMS_1891__1_186486 ER -