@article{FORUM_1992__4_6_141670,
     author = {Peter Hilton and Roger Fenn},
     title = {On links with one codimension two compontent.},
     journal = {Forum mathematicum},
     pages = {175--186},
     publisher = {mathdoc},
     volume = {4},
     number = {6},
     year = {1992},
     zbl = {0756.57013},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1992__4_6_141670/}
}