APA (7th ed.) Citation

Landahl, A., Christandl, M., Datta, N., & Ekert, A. (2004). Information processing in quantum spin systems.

Chicago Style (17th ed.) Citation

Landahl, A., M. Christandl, N. Datta, and A. Ekert. Information Processing in Quantum Spin Systems. 2004.

MLA (9th ed.) Citation

Landahl, A., et al. Information Processing in Quantum Spin Systems. 2004.