@article{10_4153_CJM_1975_072_6,
     author = {McMaster, R. J.},
     title = {Cotorsion {Theories} and {Colocalization}},
     journal = {Canadian journal of mathematics},
     pages = {618--628},
     year = {1975},
     volume = {27},
     number = {3},
     doi = {10.4153/CJM-1975-072-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-072-6/}
}