Bagrov V. G., Obukhov V. V. & Shapovalov A. V.Special Stackel spaces of the electrovacuum. : .
Bagrov V G, Obukhov V V and Shapovalov A V.Special Stackel spaces of the electrovacuum. : .
Bagrov V. G., Obukhov V. V. and Shapovalov A. V.Special Stackel spaces of the electrovacuum. : .
Bagrov V G, Obukhov V V and Shapovalov A V.: . .