@article{MS2_1978__42_166588,
     author = {David A. Cox},
     title = {Algebraic tubular neighbourhoods {I.}},
     journal = {Mathematica Scandinavica},
     pages = {211--228},
     year = {1978},
     volume = {42},
     zbl = {0414.14005},
     url = {http://geodesic.mathdoc.fr/item/MS2_1978__42_166588/}
}