@article{1028999975,
author = {Halmos, P. R.},
title = {Irreducible operators.},
journal = {Michigan Math. J.},
volume = {15},
number = {1},
year = {1968},
pages = { 215-223},
language = {en},
url = {http://dml.mathdoc.fr/item/1028999975}
}
Halmos, P. R. Irreducible operators.. Michigan Math. J., Tome 15 (1968) no. 1, pp. 215-223. http://gdmltest.u-ga.fr/item/1028999975/