CHLEBIK, M., & CHLEBIKOVA, J. (2007, January 1). Minimum 2 SAT-DELETION : Inapproximability results and relations to Minimum Vertex Cover. 155(2). Amsterdam; Lausanne; New York, NY: Elsevier, 2007. Retrieved from http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18454952
ISO-690 (author-date, English)CHLEBIK, Miroslav and CHLEBIKOVA, Janka, 2007. Minimum 2 SAT-DELETION : Inapproximability results and relations to Minimum Vertex Cover. In: [online]. Amsterdam; Lausanne; New York, NY: Elsevier, 2007. 1 January 2007. Available from: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18454952
Modern Language Association 9th editionCHLEBIK, M., and J. CHLEBIKOVA. Minimum 2 SAT-DELETION : Inapproximability results and relations to Minimum Vertex Cover. no. 2, Amsterdam; Lausanne; New York, NY: Elsevier, 2007., 2007, http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18454952.
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CHLEBIK, M. and CHLEBIKOVA, J. (2007), “Minimum 2 SAT-DELETION : Inapproximability results and relations to Minimum Vertex Cover”, in , Vol. 155, Amsterdam; Lausanne; New York, NY: Elsevier, 2007., available at: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18454952.