APA (7th ed.) Citation

Ambos-Spies, K., Bentzien, L., Fejer, P. A., Merkle, W., & Stephan, F. (2000). Collapsing polynomial-time degrees. Logic Colloquium '98.

Chicago Style (17th ed.) Citation

Ambos-Spies, Klaus, Levke Bentzien, Peter A. Fejer, Wolfgang Merkle, and Frank Stephan. "Collapsing Polynomial-time Degrees." Logic Colloquium '98 2000.

MLA (9th ed.) Citation

Ambos-Spies, Klaus, et al. "Collapsing Polynomial-time Degrees." Logic Colloquium '98, 2000.