@article{GDZPPN00209553X, title = {Some New Invariants of Links.}, journal = {Inventiones mathematicae}, volume = {55}, year = {1979}, pages = {213-228}, zbl = {0404.57004}, url = {http://dml.mathdoc.fr/item/GDZPPN00209553X} }
Kojima, Sadayoshi; Yamasaki, Masyuki. Some New Invariants of Links.. Inventiones mathematicae, Tome 55 (1979) pp. 213-228. http://gdmltest.u-ga.fr/item/GDZPPN00209553X/