%0 Journal Article %A I. P. Denisova %T Development of the method of spin coefficients for the integration of equations of bimetric gravitational theories %J Differencialʹnye uravneniâ %D 1999 %P 935-941 %V 35 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1999_35_7_a8/ %G ru %F DE_1999_35_7_a8