TY - JOUR AU - Borisov, Adrijan Varbanov AU - Spirova, Margarita Georgieva TI - On the measurability of sets of pairs of intersecting nonisotropic straight lines of type beta in the simply isotropic space JO - Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica PY - 2009 SP - 7 EP - 16 VL - 48 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AUPO_2009__48_1_a0/ LA - en ID - AUPO_2009__48_1_a0 ER -