@article{TM_1998_221_a8,
     author = {S. M. Gusein-Zade and F. Delgado and A. Campillo},
     title = {The {Extended} {Semigroup} of {a~Plane} {Curve} {Singularity}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {149--167},
     publisher = {mathdoc},
     volume = {221},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1998_221_a8/}
}