TY - JOUR AU - M. I. Kliot-Dashinskii TI - On the rate of convergence of the Trefftz variational method for the first boundary problem of an equation of polyharmonic type JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1958 SP - 163 EP - 172 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1958_2_a13/ LA - ru ID - IVM_1958_2_a13 ER -