TY  - JOUR
UR  - http://www.acta.hu
AV  - public
SN  - 0001-6969
EP  - 379
Y1  - 1989///
N1  - Bibliogr.: 379. p.
JF  - Acta scientiarum mathematicarum
KW  - Matematika
IS  - 3-4
VL  - 53
TI  - The numerical ranges and the smooth points of the unit sphere
ID  - acta15246
A1  -  Pietschmann Frank
A1  -  Rhodius Adolf
SP  - 377
ER  -