TY  - JOUR
AU  - Clarke, F. H.
AU  - Stern, R. J.
AU  - Wolenski, P. R.
TI  - Subgradient Criteria for Monotonicity, The Lipschitz Condition, and Convexity
JO  - Canadian journal of mathematics
PY  - 1993
SP  - 1167
EP  - 1183
VL  - 45
IS  - 6
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1993-065-x/
DO  - 10.4153/CJM-1993-065-x
ID  - 10_4153_CJM_1993_065_x
ER  -