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@article{DAN_1964_157_2_a14, author = {J. Barzdi\c{n}\v{s}}, title = {Universal pulsating elements}, journal = {Doklady Akademii Nauk}, pages = {291--294}, publisher = {mathdoc}, volume = {157}, number = {2}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_157_2_a14/} }
J. Barzdiņš. Universal pulsating elements. Doklady Akademii Nauk, Tome 157 (1964) no. 2, pp. 291-294. http://geodesic.mathdoc.fr/item/DAN_1964_157_2_a14/