Geodesic
On $n$-equivalence of knots and invariants of finite degree
Zapiski Nauchnykh Seminarov POMI, Investigations in topology. Part 7, Tome 208 (1993), pp. 152-173 
M. N. Gusarov. On $n$-equivalence of knots and invariants of finite degree. Zapiski Nauchnykh Seminarov POMI, Investigations in topology. Part 7, Tome 208 (1993), pp. 152-173. http://geodesic.mathdoc.fr/item/ZNSL_1993_208_a8/
@article{ZNSL_1993_208_a8,
     author = {M. N. Gusarov},
     title = {On $n$-equivalence of knots and invariants of finite degree},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {152--173},
     year = {1993},
     volume = {208},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1993_208_a8/}
}
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

A notion of $n$-equivalence of knots is introduced and it is shown that the equivalence classes with the connected sum operation make finitely generated abelian groups composing an inverse sequence. The $n$-equivalence class of knot is the universal invariant of degree $n$ (Vassiliev invariant). Bibliography: 3 titles.