TY  - BOOK
AU  - Pshenichnyĭ, B. N
TI  - Necessary conditions for an extremum
SN  - 9780824715564
SN  - 76152570
U1  - 515.7 PSH 
PY  - 1971///
CY  - New York
PB  - Marcel Dekker
KW  - Convex domains
KW  - Functional analysis
KW  - Maxima and minima
N1  - Translation of Neobkhodimye uslovii︠a︡ ėkstremuma. Bibliography: p. 201-225
ER  -