@article{AA_1991_3_5_a3,
     author = {V. I. Zvonilov},
     title = {Complex topological invariants of real algebraic curves on a~hyperboloid and an ellipsoid},
     journal = {Algebra i analiz},
     pages = {88--108},
     publisher = {mathdoc},
     volume = {3},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1991_3_5_a3/}
}