@article{10_1017_S0008439500028101,
     author = {Hochstadt, H.},
     title = {Hill's {Equation,} by {W.} {Magnus} and {S.} {Winkler.} {Interscience,} {New} {York,} 1966. viii + 127 pages. $8. 50.},
     journal = {Canadian mathematical bulletin},
     pages = {316--317},
     year = {1967},
     volume = {10},
     number = {2},
     doi = {10.1017/S0008439500028101},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500028101/}
}