@article{10_4153_CMB_1991_084_6,
     author = {Rolfsen, Dale},
     title = {PL {Link} {Isotopy,} {Essential} {Knotting} and {Quotients} of {Polynomials}},
     journal = {Canadian mathematical bulletin},
     pages = {536--541},
     year = {1991},
     volume = {34},
     number = {4},
     doi = {10.4153/CMB-1991-084-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-084-6/}
}