@book{30337,
	author = {Engel, Klaus-Jochen. and Nagel, Rainer.},
	title = {One-parameter semigroups for linear evolution equations /},
	publisher = {Springer,},
	year = {1999.},
	series = {Graduate texts in mathematics.},
	address = {[S.l.] :},
	edition = {2000th ed.}
}