@article{00877789,
title = {Non-isometric functional calculus for pairs of commuting contractions.},
journal = {Divulgaciones Matem\'aticas},
volume = {3},
year = {1995},
pages = {69-78},
zbl = {0847.47015},
language = {en},
url = {http://dml.mathdoc.fr/item/00877789}
}
Octavio, Alfredo. Non-isometric functional calculus for pairs of commuting contractions.. Divulgaciones Matemáticas, Tome 3 (1995) pp. 69-78. http://gdmltest.u-ga.fr/item/00877789/