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@article{DAN_1989_305_5_a5, author = {V. Yu. Rovenskiǐ}, title = {Decomposition of ruled and parabolic surfaces}, journal = {Doklady Akademii Nauk}, pages = {1049--1051}, publisher = {mathdoc}, volume = {305}, number = {5}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1989_305_5_a5/} }
V. Yu. Rovenskiǐ. Decomposition of ruled and parabolic surfaces. Doklady Akademii Nauk, Tome 305 (1989) no. 5, pp. 1049-1051. http://geodesic.mathdoc.fr/item/DAN_1989_305_5_a5/