Tvardovskyi, D.E.; Marsakova, V.I.
(Advances in Astronomy and Space Physics, 2015)
We have studied three binary stellar systems KR Cyg, V382 Cyg and BX And, which are eclipsing variables of the β Lyrae - type. We have studied the phase curves and O-C curves. The forms of their O-C curves are sinusoidal ...