@article{MS2_1971__29_166190,
     author = {Lundsgaard Vagn Hansen},
     title = {Some {Theorems} on {Direct} {Limits} of {Expanding} {Sequences} of {Manifolds.}},
     journal = {Mathematica Scandinavica},
     pages = {5--36},
     publisher = {mathdoc},
     volume = {29},
     year = {1971},
     zbl = {0229.58005},
     url = {http://geodesic.mathdoc.fr/item/MS2_1971__29_166190/}
}