@incollection{JEDP_1994____A16_0,
     author = {Rozenblum, Grigori V.},
     title = {Index formulas for pseudodifferential operators with discontinuous symbols},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {16},
     pages = {1--10},
     year = {1994},
     publisher = {Ecole polytechnique},
     doi = {10.5802/jedp.471},
     mrnumber = {95i:58169},
     zbl = {0878.35126},
     language = {en},
     url = {https://www.numdam.org/articles/10.5802/jedp.471/}
}