@article{FORUM_1990__2_3_141649,
     author = {Ute Twisselmann},
     title = {Classifying {Spaces} of {b-Stable} {Whitney} {Coverings.}},
     journal = {Forum mathematicum},
     pages = {361--406},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {1990},
     zbl = {0718.58012},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1990__2_3_141649/}
}