%0 Journal Article %A Okubo, Tanjiro %T Formes différentielles. by Henri Cartan. Hermann, Paris (1967). 188 pp. %J Canadian mathematical bulletin %D 1970 %P 293-293 %V 13 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500031817/ %R 10.1017/S0008439500031817 %F 10_1017_S0008439500031817