@article{10_1017_S0008439500031817,
     author = {Okubo, Tanjiro},
     title = {Formes diff\'erentielles. by {Henri} {Cartan.} {Hermann,} {Paris} (1967). 188 pp.},
     journal = {Canadian mathematical bulletin},
     pages = {293--293},
     year = {1970},
     volume = {13},
     number = {2},
     doi = {10.1017/S0008439500031817},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500031817/}
}