Elsevier. Research Metrics, 2017. (https://www.elsevier.com/solutions/scopus/features/metrics).

Elsevier, 2012. Scopus. [2012/11/20]. (http://www.scopus.com/).

FAO, 2012. Agora : système de recherche mondiale en ligne sur l’agriculture. [2012/12/14]. (http://www.aginternetwork.org/fr/).

González-Pereira, Borja ; Guerrero-Bote, Vicente P. ; Moya-Anegón, Félix, 2010. A new approach to the metric of journals’ scientific prestige: The SJR indicator. Journal of Informetrics, Volume 4, Issue 3, July 2010, Pages 379–391. [2012/12/14]. (http://dx.doi.org/10.1016/j.joi.2010.03.002).

Scopus. Journal Metrics, 2016. (https://www.scopus.com/sources).

Scimago Lab, 2017. SJR:  Scimago Journal & Country Rank. (http://www.scimagojr.com/).

Scimago Research Group, 2007. Description of Scimago Journal Rank Indicator. [2012/12/14]. (http://www.scimagojr.com/SCImagoJournalRank.pdf).