TY - JOUR AU - Alan Rose TI - On the use of a complex (Quaternion) velocity potential in three dimensions. JO - Commentarii mathematici Helvetici PY - 1950 SP - 135 EP - 148 VL - 24 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMH_1950__24_139002/ ID - CMH_1950__24_139002 ER -