@article{10_4153_CJM_1967_122_0,
     author = {Sonner, Johann},
     title = {Lifting {Inductive} and {Projective} {Limits}},
     journal = {Canadian journal of mathematics},
     pages = {1329--1339},
     year = {1967},
     volume = {19},
     number = {1},
     doi = {10.4153/CJM-1967-122-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-122-0/}
}