APA (7th ed.) Citation

Nunes, S., Ribeiro, C., & David, G. (2010). Term frequency dynamics in collaborative articles.

Chicago Style (17th ed.) Citation

Nunes, Sérgio, Cristina Ribeiro, and Gabriel David. Term Frequency Dynamics in Collaborative Articles. 2010.

MLA (8th ed.) Citation

Nunes, Sérgio, et al. Term Frequency Dynamics in Collaborative Articles. 2010.