TY  - JOUR
AU  - Ivanov, Vsevolod
TI  - First Order Characterizations of Pseudoconvex Functions
JO  - Serdica Mathematical Journal
PY  - 2001
SP  - 203
EP  - 218
VL  - 27
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SMJ2_2001_27_3_a1/
LA  - en
ID  - SMJ2_2001_27_3_a1
ER  -