@article{TIMM_2011_17_1_a15,
     author = {D. K. Potapov},
     title = {Control of spectral problems for equations with discontinuous operators},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {190--200},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2011_17_1_a15/}
}