@article{10_4153_CJM_1977_091_2,
     author = {Husch, L. S.},
     title = {Approximating {Approximate} {Fibrations} by {Fibrations}},
     journal = {Canadian journal of mathematics},
     pages = {897--913},
     year = {1977},
     volume = {29},
     number = {5},
     doi = {10.4153/CJM-1977-091-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-091-2/}
}