@article{10_4153_CMB_1972_036_5,
     author = {Harary, F. and Krarup, J. and Schwenk, A.},
     title = {Graphs {Suppressible} to an {Edge}},
     journal = {Canadian mathematical bulletin},
     pages = {201--204},
     year = {1972},
     volume = {15},
     number = {2},
     doi = {10.4153/CMB-1972-036-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-036-5/}
}