TY  - DATA
AU  - Michail M. Lavrentiev
TI  - Some Improperly Posed Problems of Mathematical Physics
SN  - 9783642882104
PY  - 1967///
PB  - Springer Berlin Heidelberg
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-3-642-88210-4
ER  -