APA (7th ed.) Citation

Gottlob, G. Existential second-order logic over graphs: Charting the tractability frontier. Journal of the ACM.

Chicago Style (17th ed.) Citation

Gottlob, Georg. "Existential Second-order Logic over Graphs: Charting the Tractability Frontier." Journal of the ACM .

MLA (9th ed.) Citation

Gottlob, Georg. "Existential Second-order Logic over Graphs: Charting the Tractability Frontier." Journal of the ACM, .

Warning: These citations may not always be 100% accurate.