TY - JOUR AU - A. A. Bukhanko TI - Plasticity condition connected with level lines of strain state surface for different deformation processes JO - Vestnik Samarskogo universiteta. Estestvennonaučnaâ seriâ PY - 2013 SP - 43 EP - 54 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VSGU_2013_9_a6/ LA - ru ID - VSGU_2013_9_a6 ER -