GOTTLOB, G., KOCH, C., & SCHULZ, K. U. (2006, January 1). Conjunctive queries over trees. 53(2). New York, NY: Association for Computing Machinery, 2006. Retrieved from http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=17846034
ISO-690 (author-date, English)GOTTLOB, Georg, KOCH, Christoph and SCHULZ, Klaus U, 2006. Conjunctive queries over trees. In: [online]. New York, NY: Association for Computing Machinery, 2006. 1 January 2006. Available from: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=17846034
Modern Language Association 9th editionGOTTLOB, G., C. KOCH, and K. U. SCHULZ. Conjunctive queries over trees. no. 2, New York, NY: Association for Computing Machinery, 2006., 2006, http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=17846034.
Mohr Siebeck - Recht (Deutsch - Österreich)Emerald - Harvard
GOTTLOB, G., KOCH, C. and SCHULZ, K.U. (2006), “Conjunctive queries over trees”, in , Vol. 53, New York, NY: Association for Computing Machinery, 2006., available at: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=17846034.