TY - JOUR AU - Dragi Radojević TI - Eigen values and principal directions of the energy momentum tensor of the ferrofluid JO - Theoretical and applied mechanics PY - 1981 SP - 113 VL - 7 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TAM_1981_7_1_a12/ LA - en ID - TAM_1981_7_1_a12 ER -