"Sony Animation Catches Chickenhare" (Press release). Sony Pictures Animation via Animation World Network. July 20, 2011. Archived from the original on January 21, 2021. Retrieved June 11, 2022.
awn.com
"Sony Animation Catches Chickenhare" (Press release). Sony Pictures Animation via Animation World Network. July 20, 2011. Archived from the original on January 21, 2021. Retrieved June 11, 2022.
Giraud, Kevin; Ky-Maka, Vinnie (11 February 2022). "Hopper - rencontre avec Ben Stassen et Benjamin Mousquet" [Hopper - meeting with Ben Stassen and Benjamin Mousquet]. cinergie.be (in French). Archived from the original on 24 February 2022. Retrieved 17 May 2022.
Giraud, Kevin; Ky-Maka, Vinnie (11 February 2022). "Hopper - rencontre avec Ben Stassen et Benjamin Mousquet" [Hopper - meeting with Ben Stassen and Benjamin Mousquet]. cinergie.be (in French). Archived from the original on 24 February 2022. Retrieved 17 May 2022.