TY  - JOUR
AU  - Mati Abel
AU  - Wiesław Żelazko
TI  - Topologically Invertible Elements and Topological Spectrum
JO  - Bulletin of the Polish Academy of Sciences. Mathematics
PY  - 2006
SP  - 257
EP  - 271
VL  - 54
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ba54-3-7/
DO  - 10.4064/ba54-3-7
LA  - en
ID  - 10_4064_ba54_3_7
ER  -