@article{DAN_1988_299_5_a20,
     author = {M. H. Khairullin},
     title = {Regularization of an inverse coefficient problem of unsteady filtration},
     journal = {Doklady Akademii Nauk},
     pages = {1108--1111},
     publisher = {mathdoc},
     volume = {299},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_299_5_a20/}
}