@article{DAN_1962_142_5_a2,
     author = {D. A. Gudkov},
     title = {Bifurcation of simple double points and cusps of real, plane, algebraic curves},
     journal = {Doklady Akademii Nauk},
     pages = {990--993},
     year = {1962},
     volume = {142},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_142_5_a2/}
}