@article{10_4153_CJM_1971_053_9,
     author = {Hou, Hsiang-Dah},
     title = {Quasi-Splitting {Exact} {Sequence}},
     journal = {Canadian journal of mathematics},
     pages = {503--506},
     year = {1971},
     volume = {23},
     number = {3},
     doi = {10.4153/CJM-1971-053-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-053-9/}
}