@article{bwmeta1.element.bwnjournal-article-smv64i1p20bwm,
author = {W. \.Zelazko},
title = {An axiomatic approach to joint spectra I},
journal = {Studia Mathematica},
volume = {64},
year = {1979},
pages = {249-261},
zbl = {0426.47002},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv64i1p20bwm}
}
Żelazko, W. An axiomatic approach to joint spectra I. Studia Mathematica, Tome 64 (1979) pp. 249-261. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv64i1p20bwm/