APA (7th ed.) Citation

Martins, P. M. R., Fernandes, J. P., & Saraiva, J. A. (2014). A web portal for the certification of open source software.

Chicago Style (17th ed.) Citation

Martins, Pedro Miguel Ribeiro, João Paulo Fernandes, and João Alexandre Saraiva. A Web Portal for the Certification of Open Source Software. 2014.

MLA (8th ed.) Citation

Martins, Pedro Miguel Ribeiro, et al. A Web Portal for the Certification of Open Source Software. 2014.