[三维动画]《Animation三维动画设计基础》作者：高文胜.pdf [58 MB]
[8] 基于本书的目的，短信、即时信息、电子邮件等不被认为是人的自然环境。
[9] Steve Hehn, Speak Up! Advertisers Want You to Talk with New Apps, NPR , April 15, 2013, http://www.npr.org/blogs/alltechconsidered/2013/04/15177345718/speak-up-advertisers-want-you-to-talk-with-new-apps.
[10] Farhad Manjoo, Siri Is a Gimmick and a Tease, Slate , November 15, 2012, http://www.slate.com/articles/technology/technology/2012/11/siri_vs_google_the _search_company_s_voice_recognition_program_gets_closer.html.
[11] Johm Markoff, A Software Secretary That Takes Charge, New York Times , December 13, 2008, http://www.nytimes.com/2008/12/14/business/14stream.html?_r=1. jqr-074