TY - JOUR ID - zu228475 UR - http://eprints.zu.edu.ua/28475/ IS - 2 A1 - Gryshchuk, S. V. Y1 - 2018/// N2 - There are considered some cases of plane orthotropy in the absence of body forces. Then every function from a pair-solution of the equilibrium system of equations with respect to displacements satisfies the elliptic fouth-order equation of the type: ? ? JF - Recherches sur les dŽeformations VL - LXVIII KW - the generalized Hook?s law KW - a plane orthotropy KW - the equilibrium system TI - On some cases of plane orthotropy SP - 71 AV - public EP - 76 ER -