TY - JOUR AU - A. N. Gaifutdinov TI - Variational properties of inverse boundary value problems of filtration in earth dams JO - Trudy seminara po kraevym zadačam PY - 1990 SP - 94 EP - 103 VL - 25 IS - 25 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUKZ_1990_25_25_a7/ LA - ru ID - KUKZ_1990_25_25_a7 ER -