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@article{DAN_1962_144_6_a7, author = {A. V. Chakmazyan}, title = {Evolute surfaces of the dual-normalized 2-space $D_2$ in $E_4$}, journal = {Doklady Akademii Nauk}, pages = {1233--1236}, publisher = {mathdoc}, volume = {144}, number = {6}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_6_a7/} }
A. V. Chakmazyan. Evolute surfaces of the dual-normalized 2-space $D_2$ in $E_4$. Doklady Akademii Nauk, Tome 144 (1962) no. 6, pp. 1233-1236. http://geodesic.mathdoc.fr/item/DAN_1962_144_6_a7/