@inproceedings{CSL-2002-ChernovSSV,
	author        = "Alexey V. Chernov and Dmitrij P. Skvortsov and Elena Z. Skvortsova and Nikolai K. Vereshchagin",
	booktitle     = "{Proceedings of the 11th EACSL Annual Conference / 16th International Workshop on Computer Science Logic}",
	doi           = "10.1007/3-540-45793-3_6",
	isbn          = "3-540-44240-5",
	pages         = "74--88",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Variants of Realizability for Propositional Formulas and the Logic of the Weak Law of Excluded Middle}",
	volume        = 2471,
	year          = 2002,
}