TY  - JOUR
AU  - Andrej Pokrzywa
TI  - On the distance between spectra
JO  - Mathematica Applicanda
PY  - 1985
SP  -  93
EP  - 103
VL  - 12
IS  - 24
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/ma.v12i24.1624/
DO  - 10.14708/ma.v12i24.1624
LA  - pl
ID  - 10_14708_ma_v12i24_1624
ER  -