Andries, van Renssen,; E., Vermaas, Pieter; D., Zwart, Sjoerd. A Taxonomy of Functions in Gellish English. The Design Society - a worldwide community. 2007 [2018-11-25]. (原始内容存档于2018-11-25) (英语).
Andries, van Renssen,; E., Vermaas, Pieter; D., Zwart, Sjoerd. A Taxonomy of Functions in Gellish English. The Design Society - a worldwide community. 2007 [2018-11-25]. (原始内容存档于2018-11-25) (英语).