@article{CMFD_2016_59_a7,
     author = {A. Yu. Savin and B. Yu. Sternin},
     title = {Elliptic $G$-operators on manifolds with isolated singularities},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {173--191},
     publisher = {mathdoc},
     volume = {59},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2016_59_a7/}
}