APA (7th ed.) Citation

Martins, B., Silva, M. J., & Chaves, M. S. (2009). Challenges and Resources for Evaluating Geographical IR.

Chicago Style (17th ed.) Citation

Martins, Bruno, Mário J. Silva, and Marcirio Silveira Chaves. Challenges and Resources for Evaluating Geographical IR. 2009.

MLA (8th ed.) Citation

Martins, Bruno, et al. Challenges and Resources for Evaluating Geographical IR. 2009.