@article {28482,
	title = {Light-Time Effect in the Eclipsing Binaries GO Cyg, GW Cep, AR Aur and V505 Sgr},
	volume = {304},
	year = {2006},
	month = {2006/08/1},
	pages = {93 - 96},
	abstract = {Orbital period changes of the eclipsing binaries GO Cyg and GW Cep are explained by the light-time effect for the first time. New minima of the eclipsing binary AR Aur improve the predicted light-time orbit. The light-time orbit with the quadratic ephemeris of the binary matches the new observations of V505 Sgr better than the linear one. As the light-time effect fits in corresponding O - C diagrams of all four systems have been reaching extreme values, the observations of minima times in forthcoming years are highly desirable.},
	keywords = {Eclipsing binary, Light-time effect, Period changes},
	isbn = {0004-640X},
	url = {https://ui.adsabs.harvard.edu/abs/2006Ap\&SS.304...93C},
	author = {Chochol, D. and Pribulla, T. and Va{\v n}ko, M. and Mayer, P and Wolf, M. and Niarchos, P. G. and Gazeas, K. D. and Manimanis, V. N. and Br{\'a}t, L. and Zejda, M.}
}
