TY  - JOUR
AU  - I. M. Prudnikov
TI  - Necessary and sufficient conditions for the representability of a positive homogeneous function of three variables in the form of a  difference of convex functions
JO  - Izvestiya. Mathematics 
PY  - 1993
SP  - 377
EP  - 387
VL  - 41
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1993_41_2_a10/
LA  - en
ID  - IM2_1993_41_2_a10
ER  -