@article{ZNSL_1988_168_a9,
     author = {V. M. Nezhinskii},
     title = {Groups of classes of pseudo-homotopic singular {links.~I}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {114--124},
     publisher = {mathdoc},
     volume = {168},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1988_168_a9/}
}