@article{MS2_1981__49_166769,
     author = {Lars Tyge Nielsen},
     title = {Transversality and the inverse image of a submanifold with corners.},
     journal = {Mathematica Scandinavica},
     pages = {211--221},
     year = {1981},
     volume = {49},
     zbl = {0442.57011},
     url = {http://geodesic.mathdoc.fr/item/MS2_1981__49_166769/}
}