%0 Journal Article %A J. Paszkowska %T Evaluation of the absorption factor %J Applicationes Mathematicae %D 1974 %P 245-275 %V 14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-14-2-245-275/ %R 10.4064/am-14-2-245-275 %G en %F 10_4064_am_14_2_245_275