@article{ZNSL_2021_506_a7,
     author = {D. V. Korikov},
     title = {On the topology of surfaces with a common boundary and close {DN-maps}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {79--88},
     publisher = {mathdoc},
     volume = {506},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2021_506_a7/}
}