%0 Journal Article %A Husch, L. S. %T Approximating Approximate Fibrations by Fibrations %J Canadian journal of mathematics %D 1977 %P 897-913 %V 29 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-091-2/ %R 10.4153/CJM-1977-091-2 %F 10_4153_CJM_1977_091_2