%0 Journal Article %A Gewirtz, A. %T Graphs with Maximal Even Girth %J Canadian journal of mathematics %D 1969 %P 915-934 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-101-9/ %R 10.4153/CJM-1969-101-9 %F 10_4153_CJM_1969_101_9