@article{05178418,
title = {On the spectrum of a morphism of quotient Hilbert spaces.},
journal = {Surveys in Mathematics and its Applications},
volume = {1},
year = {2006},
pages = {13-22},
zbl = {1147.47006},
language = {en},
url = {http://dml.mathdoc.fr/item/05178418}
}
Nădăban, Sorin. On the spectrum of a morphism of quotient Hilbert spaces.. Surveys in Mathematics and its Applications, Tome 1 (2006) pp. 13-22. http://gdmltest.u-ga.fr/item/05178418/