%0 Journal Article %A Yu. N. Radayev %T Instantaneously not elongated directors in three-dimensional kinematics of the Coulomb--Mohr medium %J Izvestiya of Saratov University. Mathematics. Mechanics. Informatics %D 2018 %P 467-483 %V 18 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ISU_2018_18_4_a9/ %G ru %F ISU_2018_18_4_a9