@misc{10_1017_S0008439500027624,
     title = {Addendum},
     journal = {Canadian mathematical bulletin},
     pages = {125--126},
     year = {1967},
     volume = {10},
     number = {1},
     doi = {10.1017/S0008439500027624},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500027624/}
}