@article{CMFD_2023_69_4_a3,
     author = {K. N. Zhuikov and A. Yu. Savin},
     title = {Eta-invariant of elliptic parameter-dependent boundary-value problems},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {599--620},
     publisher = {mathdoc},
     volume = {69},
     number = {4},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2023_69_4_a3/}
}