@article{DAN_1988_299_5_a7,
     author = {G. S. Makanin},
     title = {A representation of an oriented knot},
     journal = {Doklady Akademii Nauk},
     pages = {1060--1063},
     publisher = {mathdoc},
     volume = {299},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_299_5_a7/}
}