@article{1250128224,
author = {Engstrom, Philip J.},
title = {Singular perturbation of two Cauchy problems in a Hilbert space},
journal = {Rocky Mountain J. Math.},
volume = {12},
number = {4},
year = {1982},
pages = { 561-568},
language = {en},
url = {http://dml.mathdoc.fr/item/1250128224}
}
Engstrom, Philip J. Singular perturbation of two Cauchy problems in a Hilbert space. Rocky Mountain J. Math., Tome 12 (1982) no. 4, pp. 561-568. http://gdmltest.u-ga.fr/item/1250128224/