%0 Journal Article
%A Kaufman, H.
%T Contributions to Differential Equations, J. P. LaSalle and J. B. Diaz (managing editors), vol. I. Interscience Publishers, New York, 1963. v + 519 pages. $16.50.
%J Canadian mathematical bulletin
%D 1967
%P 150-150
%V 10
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500027818/
%R 10.1017/S0008439500027818
%F 10_1017_S0008439500027818