{{Cite| last1 = Schloerke| first1 = Barret| last2 = Crowley| first2 = Jason| last3 = Cook| first3 = Di| last4 = Hofmann| first4 = Heike| last5 = Wickham| first5 = Hadley| last6 = Briatte| first6 = François| last7 = Marbach| first7 = Moritz| last8 = Thoen| first8 = Edwin| last9 = Elberg| first9 = Amos| last10 = Larmarange| first10 = Joseph| title = GGally: Extension to ggplot2| access-date = 2016-06-12| date = 2016-06-02| url = https://cran.r-project.org/web/packages/GGally/index.html}}