@article{MZM_1967_1_4_a8,
     author = {S. I. Grinberg},
     title = {The trace formula for the {Schr\"odinger} equation in a finite region},
     journal = {Matemati\v{c}eskie zametki},
     pages = {451--460},
     publisher = {mathdoc},
     volume = {1},
     number = {4},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1967_1_4_a8/}
}