%0 Journal Article %A I. E. Andrushkevich %A G. V. Shishkin %T Criteria of separability of the variables in the Dirac equation in gravitational fields %J Teoretičeskaâ i matematičeskaâ fizika %D 1987 %P 289-302 %V 70 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1987_70_2_a12/ %G ru %F TMF_1987_70_2_a12