%0 Journal Article %A Bouška, Jiří %T Absolut brightness of comet Ikya-Seki 1965 f and of other comets of Kreutz's group %J Acta Universitatis Carolinae. Mathematica et Physica %D 1966 %P 67-72 %V 7 %N 2 %U http://geodesic.mathdoc.fr/item/AUCMP_1966_7_2_a1/ %G en %F AUCMP_1966_7_2_a1