MLA

Mihai Lupu, Katja Mayer, John Tait, Anthony J. Trippe, et al. Current Challenges In Patent Information Retrieval. Springer Berlin Heidelberg, 2011.

APA

Mihai Lupu, A. J. Trippe, Lupu, M., Mayer, K., Tait, J., & Trippe, A. J. (2011). Current Challenges in Patent Information Retrieval. Springer Berlin Heidelberg.

Chicago

Mihai Lupu, Katja Mayer, John Tait, Anthony J. Trippe, Mihai Lupu, Katja Mayer, John Tait, and Anthony J Trippe. Current Challenges In Patent Information Retrieval. : Springer Berlin Heidelberg, 2011.