TY  - DATA
AU  - Yu.V. Egorov, M.A. Shubin
TI  - Partial Differential Equations IV
SN  - 9783662092071
PY  - 1993///
PB  - Springer Berlin Heidelberg
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-3-662-09207-1
ER  -