@article{CMH_1987__62_140097,
     author = {Kent E. Orr},
     title = {New link invariants and applications.},
     journal = {Commentarii mathematici Helvetici},
     pages = {542--560},
     year = {1987},
     volume = {62},
     zbl = {0637.57016},
     url = {http://geodesic.mathdoc.fr/item/CMH_1987__62_140097/}
}