TY  - JOUR
AU  - D. GRIES
TI  - Characterizations of Certain Classes of Norms.
JO  - Numerische Mathematik
PY  - 1967
SP  - 30
EP  - 41
VL  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NUMA_1967__10_131764/
ID  - NUMA_1967__10_131764
ER  -