APA (7th ed.) Citation

C, M., R, D., & F, B. (2011, February). Preface. EPJ Web of Conferences.

Chicago Style (17th ed.) Citation

C, Moutou, Díaz R, and Bouchy F. "Preface." EPJ Web of Conferences Feb. 2011.

MLA (9th ed.) Citation

C, Moutou, et al. "Preface." EPJ Web of Conferences, Feb. 2011.