@incollection {386241,
	title = {INUS Conditions},
	booktitle = {Encyclopedia of statistics in behavioral science},
	volume = {2},
	year = {2005},
	pages = {955{\textendash}958},
	publisher = {John Wiley \& Sons},
	isbn = {0470860804},
	author = {Horsten, Leon and Weber, Erik}
}
@incollection {DJ:real,
	title = {In-world realism vs. reflective realism.},
	booktitle = {Realism in the Sciences},
	year = {1996},
	pages = {35{\textendash}53},
	publisher = {Universitaire Pers},
	address = {Leuven},
	author = {Batens, Diderik and Meheus, Joke},
	editor = {Douven, Igor and Horsten, Leon}
}
