SELAM, S. O. And Demircan, O. 1998. Orbital period variations of some algol-type binaries. Conference of the NATO-Advanced-Study-Institute on Variable Stars as Essential Astrophysical Tools , (CESME, Turkey), 605-614.

SELAM, S. O., & Demircan, O., (1998). Orbital period variations of some algol-type binaries . Conference of the NATO-Advanced-Study-Institute on Variable Stars as Essential Astrophysical Tools (pp.605-614). CESME, Turkey

SELAM, SELİM, And O Demircan. "Orbital period variations of some algol-type binaries," Conference of the NATO-Advanced-Study-Institute on Variable Stars as Essential Astrophysical Tools, CESME, Turkey, 1998

SELAM, SELİM O. And Demircan, O. "Orbital period variations of some algol-type binaries." Conference of the NATO-Advanced-Study-Institute on Variable Stars as Essential Astrophysical Tools , CESME, Turkey, pp.605-614, 1998

SELAM, S. O. And Demircan, O. (1998) . "Orbital period variations of some algol-type binaries." Conference of the NATO-Advanced-Study-Institute on Variable Stars as Essential Astrophysical Tools , CESME, Turkey, pp.605-614.

@conferencepaper{conferencepaper, author={SELİM OSMAN SELAM And author={O Demircan}, title={Orbital period variations of some algol-type binaries}, congress name={Conference of the NATO-Advanced-Study-Institute on Variable Stars as Essential Astrophysical Tools}, city={CESME}, country={Turkey}, year={1998}, pages={605-614} }