@article{TM_2010_268_a9,
     author = {V. A. Il'in},
     title = {Optimization of the boundary control by a~displacement or by an elastic force on one end of a~string under a~model nonlocal boundary condition},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {124--136},
     publisher = {mathdoc},
     volume = {268},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2010_268_a9/}
}