@article{CMFD_2008_29_a7,
     author = {V. E. Nazaikinskii and A. Yu. Savin and B. Yu. Sternin},
     title = {Noncommutative geometry and classification of elliptic operators},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {131--164},
     publisher = {mathdoc},
     volume = {29},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2008_29_a7/}
}