APA (7th ed.) Citation

Lengauer, T., & Wanke, E. (1993). Efficient decision procedures for graph properties on context-free graph languages. Journal of the ACM, 40, 368. https://doi.org/10.1145/151261.151268

Chicago Style (17th ed.) Citation

Lengauer, Thomas, and Egon Wanke. "Efficient Decision Procedures for Graph Properties on Context-free Graph Languages." Journal of the ACM 40 (1993): 368. https://doi.org/10.1145/151261.151268.

MLA (9th ed.) Citation

Lengauer, Thomas, and Egon Wanke. "Efficient Decision Procedures for Graph Properties on Context-free Graph Languages." Journal of the ACM, vol. 40, 1993, p. 368, https://doi.org/10.1145/151261.151268.