@article{UFA_2022_14_2_a2,
     author = {K. N. Zhuikov and A. Yu. Savin},
     title = {Eta-invariant for parameter-dependent  families  with periodic coefficients},
     journal = {Ufa mathematical journal},
     pages = {35--55},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2022_14_2_a2/}
}