@phdthesis {PhD_Steffen,
	title = {Virtuosi at Work: Historical-Philosophical Essays on Causality and Methodology in the Natural Philosophy of Galileo, Huyghens and Newton},
	year = {2006},
	month = {March 1},
	publisher = {Ghent University},
	type = {phd},
	author = {Ducheyne, Steffen}
}
