TY  - JOUR
AU  - ALZER, HORST
TI  - ON A CONVEXITY THEOREM OF RUSKAI AND WERNER AND RELATED RESULTS
JO  - Glasgow mathematical journal
PY  - 2005
SP  - 425
EP  - 438
VL  - 47
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089505002685/
DO  - 10.1017/S0017089505002685
ID  - 10_1017_S0017089505002685
ER  -