@article{10_4153_CJM_1971_076_3,
     author = {Evans, Benny},
     title = {First {Homology} of {Irreducible} {3-Manifolds}},
     journal = {Canadian journal of mathematics},
     pages = {686--691},
     year = {1971},
     volume = {23},
     number = {4},
     doi = {10.4153/CJM-1971-076-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-076-3/}
}