TY - JOUR AU - N. B. Il'inskii AU - S. R. Nasyrov TI - The problem of determining the underground contour from the back pressure curve in the presence of rectilinear water pressure JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1984 SP - 34 EP - 42 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1984_2_a5/ LA - ru ID - IVM_1984_2_a5 ER -