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@article{MAN_1991__291_1_164887, author = {Kouki Taniyama}, title = {On unknotting operations of two-brigde knots.}, journal = {Mathematische Annalen}, pages = {579--590}, publisher = {mathdoc}, volume = {291}, number = {1}, year = {1991}, zbl = {0726.57009}, url = {http://geodesic.mathdoc.fr/item/MAN_1991__291_1_164887/} }
Kouki Taniyama. On unknotting operations of two-brigde knots.. Mathematische Annalen, Tome 291 (1991) no. 1, pp. 579-590. http://geodesic.mathdoc.fr/item/MAN_1991__291_1_164887/