@article{10_1017_S0008439500025182,
     author = {Duff, G.F.D.},
     title = {Sound {Pulses.} by {F.G.} {Friedlander.} {Cambridge} {University} {Press,} {The} {Macmillan} {Company} of {Canada,} 1958. 199 pages. {Canadian} {List} {Price} $6. 75.},
     journal = {Canadian mathematical bulletin},
     pages = {138--139},
     year = {1959},
     volume = {2},
     number = {2},
     doi = {10.1017/S0008439500025182},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500025182/}
}