@article{SM_2000_191_8_a3,
     author = {A. Yu. Savin and B. Yu. Sternin},
     title = {Elliptic operators in odd subspaces},
     journal = {Sbornik. Mathematics},
     pages = {1191--1213},
     publisher = {mathdoc},
     volume = {191},
     number = {8},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2000_191_8_a3/}
}