%0 Journal Article %A Zassenhaus, Hans %T An Introduction to Differential Algebra, by Irving Kaplansky. Actualités scientifiques et industrielles 1251, Hermann, Paris, 1957. 62 pages. %J Canadian mathematical bulletin %D 1959 %P 134-134 %V 2 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500025145/ %R 10.1017/S0008439500025145 %F 10_1017_S0008439500025145