TY  - DATA
AU  - I. V. Girsanov
TI  - Lectures on Mathematical Theory of Extremum Problems
SN  - 9783642806841
PY  - 1972///
PB  - Springer Berlin Heidelberg
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-3-642-80684-1
ER  -