@article{2815,
author = {Showalter, R.E.},
title = {Perturbation of maximal accretive operators with right angle},
journal = {Portugaliae mathematica},
volume = {36},
year = {1977},
pages = {79-82},
zbl = {0431.47017},
mrnumber = {0577413},
language = {en},
url = {http://dml.mathdoc.fr/item/2815}
}
Showalter, R.E. Perturbation of maximal accretive operators with right angle. Portugaliae mathematica, Tome 36 (1977) pp. 79-82. http://gdmltest.u-ga.fr/item/2815/