@article{IM_1989__97_2_143698,
     author = {Jonathan A. Hillman},
     title = {The algebraic characterization of the exteriors of certain 2-knots.},
     journal = {Inventiones mathematicae},
     pages = {195--208},
     publisher = {mathdoc},
     volume = {97},
     number = {2},
     year = {1989},
     zbl = {0683.57008},
     url = {http://geodesic.mathdoc.fr/item/IM_1989__97_2_143698/}
}