%0 Journal Article %A Fiřt, Vladimír %T Plasticity conditions of polycrystalline material with acicular structure. [Preliminary communication] %J Applications of Mathematics %D 1966 %P 490-493 %V 11 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1966.103056/ %R 10.21136/AM.1966.103056 %G en %F 10_21136_AM_1966_103056