@article{10_1090_S0894_0347_1988_0928266_2,
     author = {Quinn, Frank},
     title = {Homotopically stratified sets},
     journal = {Journal of the American Mathematical Society},
     pages = {441--499},
     publisher = {mathdoc},
     volume = {01},
     number = {2},
     year = {1988},
     doi = {10.1090/S0894-0347-1988-0928266-2},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1988-0928266-2/}
}