@article{JEDP_1993____A18_0,
     author = {Gromov, Mikhael and Shubin, Mikhail A.},
     title = {The {Riemann-Roch} theorem for elliptic operators and solvability of elliptic equations with additional conditions on compact subsets},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {18},
     pages = {1--13},
     publisher = {Ecole polytechnique},
     year = {1993},
     mrnumber = {94k:58143},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_1993____A18_0/}
}