%0 Journal Article %A Th. Yu. Popelensky %A M. V. Prikhodko %T Bruns–Gubeladze $K$-groups for quadrangular pyramid %J Contemporary Mathematics. Fundamental Directions %D 2013 %P 142-151 %V 51 %U http://geodesic.mathdoc.fr/item/CMFD_2013_51_a8/ %G ru %F CMFD_2013_51_a8