%0 Journal Article %A N. E. Maryukova %T Constant curvature surfaces in the~constant curvature quasi-Riemann space and the~Klein--Gordon equation %J Fundamentalʹnaâ i prikladnaâ matematika %D 2000 %P 299-303 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2000_6_1_a25/ %G ru %F FPM_2000_6_1_a25