@article{DAN_1978_242_5_a15,
     author = {N. V. Banichuk},
     title = {Extremum problem for a system with distributed parameters and determination of the optimum properties of an elastic medium},
     journal = {Doklady Akademii Nauk},
     pages = {1042--1045},
     publisher = {mathdoc},
     volume = {242},
     number = {5},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_242_5_a15/}
}