@ARTICLE{VG98-wftut,
	AUTHOR = "Van Gelder, Allen",
	TITLE = "A Tutorial on the Well-Founded Semantics",
	JOURNAL= "Programmirovanie",
	VOLUME = 24, NUMBER = "1",
	YEAR = 1998,
	NOTE = "(Russian) Translation: Programming and Computer Software
		(24)1, Jan.~1998."
	}