@article{IM_1991__106_1_143934,
     author = {Pawel Traczyk},
     title = {Periodic knots and the skein polynomial.},
     journal = {Inventiones mathematicae},
     pages = {73--84},
     publisher = {mathdoc},
     volume = {106},
     number = {1},
     year = {1991},
     zbl = {0753.57008},
     url = {http://geodesic.mathdoc.fr/item/IM_1991__106_1_143934/}
}