@article{DE_1990_26_9_a17,
     author = {D. G. Orlovskii},
     title = {On a problem of determining the parameter of an evolution equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1614--1621},
     publisher = {mathdoc},
     volume = {26},
     number = {9},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_9_a17/}
}