@article{IM_1979__54_142679,
     author = {Sadayoshi Kojima and Masyuki Yamasaki},
     title = {Some {New} {Invariants} of {Links.}},
     journal = {Inventiones mathematicae},
     pages = {213--228},
     publisher = {mathdoc},
     volume = {54},
     year = {1979},
     zbl = {0404.57004},
     url = {http://geodesic.mathdoc.fr/item/IM_1979__54_142679/}
}