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@article{Kardashev:1970, author = {N. S. Kardashev}, title = {Possibility of Observing Extragalactic Pulsars}, publisher = {Physics-Uspekhi}, year = {1970}, journal = {Phys. Usp.}, volume = {12}, number = {6}, pages = {808-808}, url = {https://ufn.ru/en/articles/1970/6/y/}, doi = {10.1070/PU1970v012n06ABEH004056} }
Оригинал: Кардашев Н С «О возможности наблюдения внегалактических пульсаров» УФН 99 526–526 (1969); DOI: 10.3367/UFNr.0099.196911y.0526