@article{publication-4441,
	author={Farkas, Walter and Jacob, Niels and Schilling, Rene L},
	doi={10.1515/FORM.2001.51},
	issn={0933-7741},
	journal={Forum Mathematicum},
	number=1,
	pages={59-90},
	publisher={De Gruyter},
	title={Feller semigroups, Lp-sub-Markovian semigroups, and applications to pseudo-differential operators with negative definite symbols},
	volume=13,
	year=2001,
}