TY - JOUR AU - Zassenhaus, Hans TI - An Introduction to Differential Algebra, by Irving Kaplansky. Actualités scientifiques et industrielles 1251, Hermann, Paris, 1957. 62 pages. JO - Canadian mathematical bulletin PY - 1959 SP - 134 EP - 134 VL - 2 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0008439500025145/ DO - 10.1017/S0008439500025145 ID - 10_1017_S0008439500025145 ER -