@article{TM_2010_271_a14,
     author = {A. Yu. Savin and B. Yu. Sternin},
     title = {Noncommutative elliptic theory. {Examples}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {204--223},
     year = {2010},
     volume = {271},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2010_271_a14/}
}