@article{DAN_1984_277_6_a18,
     author = {N. A. Tikhonov},
     title = {The optimization of the process of purification of a porous},
     journal = {Doklady Akademii Nauk},
     pages = {1354--1356},
     year = {1984},
     volume = {277},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_277_6_a18/}
}