Romanization of Chinese characters in Phoebus 9 adheres to the pinyin system, with the following exceptions: Terms and names in titles of publications using different systems of romanization; Self-chosen names of modern Chinese scholars in the West, familiar through previous publications, for example Wen Fong ( n ot Fang Wen ); Place names outside of mainland China, the usage of which is accepted internationally, for example Hong Kong ( not Xianggang) and Taipei (not Taibei).