%0 Journal Article %A M. Yu. Khachai %A M. I. Poberii %T The computational complexity and approximability of a series of geometric covering problems %J Trudy Instituta matematiki i mehaniki %D 2012 %P 247-260 %V 18 %N 3 %U http://geodesic.mathdoc.fr/item/TIMM_2012_18_3_a28/ %G ru %F TIMM_2012_18_3_a28