TY  - BOOK
AU  - Ioffe, A. D.
AU  - Tihomirov, V. M.
TI  - Theory of extremal problems
T2  - Studies in mathematics and its applications
SN  - 0444851674
U1  - 515.64 
PY  - 1979///
CY  - Amsterdam
PB  - North-Holland
N1  - Includes bibliographical references and index
ER  -