@article{bwmeta1.element.bwnjournal-article-smv26i1p20bwm,
author = {C. Foia\c s and W. Malk},
title = {The extended spectrum of completely non-unitary contractions and the spectral mapping theorem},
journal = {Studia Mathematica},
volume = {27},
year = {1966},
pages = {239-245},
zbl = {0146.12603},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv26i1p20bwm}
}
Foiaş, C.; Malk, W. The extended spectrum of completely non-unitary contractions and the spectral mapping theorem. Studia Mathematica, Tome 27 (1966) pp. 239-245. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv26i1p20bwm/