@article{DAN_1981_259_5_a1,
     author = {A. S. Bratus'},
     title = {Asymptotic solutions in problems of the optimal control of the coefficients of elliptic operators},
     journal = {Doklady Akademii Nauk},
     pages = {1035--1038},
     publisher = {mathdoc},
     volume = {259},
     number = {5},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_259_5_a1/}
}