Bumba, Václav - Klvaňa, Miroslav - Sýkora, J.
Coronal holes and photospheric magnetic field.
Solar coronal structures. Bratislava: VEDA, 1994 - (Rušin, V.; Heinzel, P.; Vial, J.), s. 47-51. International Astronomical Union Colloquium. 144.
[Solar Coronal Structures, IAU Colloquium 144. Tatranská Lomnica (SK), 20.09.1993-24.09.1993]
Grant CEP: GA AV ČR IA30302
http://hdl.handle.net/11104/0021797