WILLIAMS, Richard. The animator's survival kit : [a manual of methods, principles and formulas for classical, computer, games, stop motion and internet animators]. 1. American expanded pbk. ed. New York : Faber and Faber, c2009. x, 382 s. Available on Internet: <http://www.gbv.de/dms/weimar/toc/733939384_toc.pdf> ISBN 978-0-86547-897-8.