Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1987_297_1_a8, author = {S. M. Natanzon}, title = {Real meromorphic functions on real algebraic curves}, journal = {Doklady Akademii Nauk}, pages = {40--43}, publisher = {mathdoc}, volume = {297}, number = {1}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1987_297_1_a8/} }
S. M. Natanzon. Real meromorphic functions on real algebraic curves. Doklady Akademii Nauk, Tome 297 (1987) no. 1, pp. 40-43. http://geodesic.mathdoc.fr/item/DAN_1987_297_1_a8/