APA (7th ed.) Citation

Berdnikov, L. N., Pastukhova, E. N., Kovtyukh, V. V., Lemasle, B., Kniazev, A. Y., Usenko, I. A., . . . Keir, L. E. (2019). Search for evolutionary changes in the periods of cepheids: V1033 Cyg, a classical cepheid at the first crossing of the instability strip. Astronomy letters, 45(4), . https://doi.org/10.1134/S1063773719040017

Chicago Style (17th ed.) Citation

Berdnikov, L. N., et al. "Search for Evolutionary Changes in the Periods of Cepheids: V1033 Cyg, a Classical Cepheid at the First Crossing of the Instability Strip." Astronomy Letters 45, no. 4 (2019). https://doi.org/10.1134/S1063773719040017.

MLA (9th ed.) Citation

Berdnikov, L. N., et al. "Search for Evolutionary Changes in the Periods of Cepheids: V1033 Cyg, a Classical Cepheid at the First Crossing of the Instability Strip." Astronomy Letters, vol. 45, no. 4, 2019, https://doi.org/10.1134/S1063773719040017.