@book{123310,
	author = {International Congress for Logic Methodology and Philosophy of Science, 1971},
	title = {Abstracts},
	publisher = {Centre of Information documantation in Social and Political Science},
	year = {1971},
	address = {Gutenberg},
	note = {Heelan, Patrick A. - Complementarity as a quantum logic of contexts p. 240-241}
}