Koubský, Pavel - Harmanec, Petr - Horn, Jiří - Hubert, A. M. - Hubert, H. - Floquet, M.
70 years of observations of 4 Herculis: Changes through three shell episodes.
Pulsation, Rotation and Mass Loss in Early-Type Stars. Dordrecht: Kluwer Academic, 1994 - (Balona, L.; Henrichs, H.; LeContel, J.), s. 370-371
[International Astronomical Union Symposium /162./. Antibes-Juan-les-Pins (FR), 05.10.1993-08.10.1993]
Grant CEP: GA AV ČR IA30318
http://hdl.handle.net/11104/0021859