%0 Journal Article %A Vanstone, J. R. %T Theory of Ordinary Differential Equations. by R. H. Cole. Appleton-Century-Crofts, New York (1968). xi + 273 pp. %J Canadian mathematical bulletin %D 1970 %P 288-289 %V 13 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500031763/ %R 10.1017/S0008439500031763 %F 10_1017_S0008439500031763