@article{TM_1998_221_a3,
     author = {P. M. Akhmet'ev and D. Repov\v{s}},
     title = {A~Generalization of the {Sato--Levine} {Invariant}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {69--80},
     publisher = {mathdoc},
     volume = {221},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1998_221_a3/}
}