@article{10_1017_S0008439500030368,
     author = {Kaufman, H.},
     title = {Nonlinear {Prograrriming,} by {H.} {P.} {K\"unzi} and {W.} {Krelle,} in collaboration with {W.} {Oettli.} {Translated} by {F.} {Levin.} {Blaisdell} {Publishing} {Co.,} {Waltham,} {Mass.} 1966 xiv + 240 pages. {U.S.} $8.50.},
     journal = {Canadian mathematical bulletin},
     pages = {251--252},
     year = {1969},
     volume = {12},
     number = {2},
     doi = {10.1017/S0008439500030368},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500030368/}
}