@article{10_1017_S0008439500027107,
     author = {Duff, G.F.D.},
     title = {Ordinary {Differential} {Equations,} by {Garrett} {Birkhoff} and {Gian-Carlo} {Roba.} {Ginn} and {Co.,Boston,} 1962. viii +318 pages. $8. 50. -Differential Equations, by H. S. Bear. Addison-Wesley, Reading, Mass.,1962. viii + 207 pages. $7.50.},
     journal = {Canadian mathematical bulletin},
     pages = {314--315},
     year = {1964},
     volume = {7},
     number = {2},
     doi = {10.1017/S0008439500027107},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500027107/}
}