@article{ZNSL_2018_476_a9,
     author = {V. M. Nezhinskij and V. V. Nesterenok},
     title = {Multiplication of classical knots},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {134--142},
     year = {2018},
     volume = {476},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2018_476_a9/}
}