@article{UZKU_1955_115_6_a0,
     author = {G. G. Tumashev and M. T. Nuzhin},
     title = {Inverse boundary problems},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {3--167},
     publisher = {mathdoc},
     volume = {115},
     number = {6},
     year = {1955},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_1955_115_6_a0/}
}