This document is a translation agreement between Ching-Chen Mao, an associate professor, and Jan Velterop, the author of an article. It grants Mao the right to translate Velterop's article "The Example of a Hybrid Model: Springer Open Choice" into simplified and traditional Chinese and publish the translation in print and digital formats without payment of royalties, as the translation is being done to promote open access ideals. Mao agrees to accurately translate the work without changes to content or meaning. All copyrights remain with the original author. The agreement is governed by Taiwan copyright law harmonized with the EU Copyright Directive.