@article{KUKZ_1990_25_25_a7,
     author = {A. N. Gaifutdinov},
     title = {Variational properties of inverse boundary value problems of filtration in earth dams},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {94--103},
     publisher = {mathdoc},
     volume = {25},
     number = {25},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1990_25_25_a7/}
}