Qinglian Guo, Kyoko Kato, Norio Sato, Sueko Kanaya. A plane-based model of four dimensional snowflakes. In Marc Alexa, Adam Finkelstein, editors, 34. International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2007, San Diego, California, USA, August 5-9, 2007, Posters. pages 120, ACM, 2007. [doi]