Gottlob, G., Leone, N., & Scarcello, F. (1999). Hypertree Decompositions and Tractable Queries.
芝加哥风格引文Gottlob, G., N. Leone, 与 F. Scarcello. Hypertree Decompositions and Tractable Queries. 1999.
MLA引文Gottlob, G., et al. Hypertree Decompositions and Tractable Queries. 1999.
警告：这些引文格式不一定是100％准确.