@misc{10_1017_S0008439500025078,
     title = {Problems for {Solution}},
     journal = {Canadian mathematical bulletin},
     pages = {122--123},
     year = {1959},
     volume = {2},
     number = {2},
     doi = {10.1017/S0008439500025078},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500025078/}
}