@incollection {Urbaniak2008a,
	title = {Reducing sets to modalities},
	booktitle = {Proceedings of the 31st International Wittgenstein Symposium of the Austrian Ludwig Wittgenstein Society},
	volume = {XVI},
	year = {2008},
	pages = {359-361},
	publisher = {Department for Culture and Science of the Province of Lower Austria},
	address = {Kirchberg am wechsel},
	author = {Urbaniak, Rafal},
	editor = {Hieke, Alexander and Hannes, Leitgeb}
}
