APA (7th ed.) Citation

Tvardovskyi, D., & Marsakova, V. (2015). Cyclic Period Changes of β Lyrae-type Eclipsing Variable Stars KR Cyg, V382 Cyg and BX And. Advances in Astronomy and Space Physics.

Chicago Style (17th ed.) Citation

Tvardovskyi, D.E, and V.I Marsakova. "Cyclic Period Changes of β Lyrae-type Eclipsing Variable Stars KR Cyg, V382 Cyg and BX And." Advances in Astronomy and Space Physics 2015.

MLA (8th ed.) Citation

Tvardovskyi, D.E, and V.I Marsakova. "Cyclic Period Changes of β Lyrae-type Eclipsing Variable Stars KR Cyg, V382 Cyg and BX And." Advances in Astronomy and Space Physics, 2015.

Warning: These citations may not always be 100% accurate.