@article{10_4064_fm_145_1_79_89,
     author = {Alberto Cavicchioli and Friedrich Hegenbarth},
     title = {Knot manifolds with isomorphic spines},
     journal = {Fundamenta Mathematicae},
     pages = {79--89},
     publisher = {mathdoc},
     volume = {145},
     number = {1},
     year = {1994},
     doi = {10.4064/fm-145-1-79-89},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-145-1-79-89/}
}