%0 Journal Article %A Borisov, Adrijan Varbanov %A Spirova, Margarita Georgieva %T On the measurability of sets of pairs of intersecting nonisotropic straight lines of type beta in the simply isotropic space %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 2009 %P 7-16 %V 48 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_2009__48_1_a0/ %G en %F AUPO_2009__48_1_a0