@article{JSFU_2021_14_4_a14,
     author = {Alexander I. Kozhanov and Tatyana N. Shipina},
     title = {Inverse problems of finding the lowest coefficient in the elliptic equation},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {528--542},
     publisher = {mathdoc},
     volume = {14},
     number = {4},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2021_14_4_a14/}
}