@article{IM_1967__3_141876,
     author = {C.P. ROURKE and B.J. SANDERSON},
     title = {An {Embedding} {Without} a {Normal} {Microbundle.}},
     journal = {Inventiones mathematicae},
     pages = {293--299},
     publisher = {mathdoc},
     volume = {3},
     year = {1967},
     zbl = {0168.44602},
     url = {http://geodesic.mathdoc.fr/item/IM_1967__3_141876/}
}