@article{KUTGS_1983_15_a1,
     author = {V. A. Baranova},
     title = {Ruled surfaces in multidimensional {Euclidean} and elliptic spaces},
     journal = {Trudy Geometricheskogo Seminara},
     pages = {5--12},
     year = {1983},
     volume = {15},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUTGS_1983_15_a1/}
}