TY  - BOOK
AU  - Danko, P. E.
AU  - Popov, A. G.
AU  - Koževnikova, T. J.
TI  - Higher mathematics in problems and exercises
PY  - 1988///
CY  - Μ.
PB  - Mir
KW  - В11я73-4
KW  - rubbk
ER  -