TY  - JOUR
AU  - D. Przeworska-Rolewicz
AU  - S. Rolewicz
TI  - On d-characteristic and $d_Ξ$-characteristic of linear operators
JO  - Annales Polonici Mathematici
PY  - 1967
SP  - 117
EP  - 121
VL  - 19
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-19-2-117-121/
DO  - 10.4064/ap-19-2-117-121
LA  - en
ID  - 10_4064_ap_19_2_117_121
ER  -