WOLF, Marek, Hana KUČÁKOVÁ, Martin KOLASA, P. ŠŤASTNÝ, Z. BOZKURT, Petr HARMANEC,
Miloslav ZEJDA, Luboš BRÁT and Kamil HORNOCH. Apsidal motion in eccentric eclipsing binaries: CW Cephei, V478 Cygni, AG Persei, and IQ Persei.
Astronomy and Astrophysics. Les Ulis Cedex, France: EDP Sciences, 2006, vol. 456, No 3, p. 1077-1083. ISSN 0004-6361.