I was wrong. Dieresis is used in PinYin. The "Chinese for Beginners" (ISBN 7-5619-1117-3) I refer, also uses twice the size periods below the vowel to tag the accentuated syllable of a word.
sorry Holger <hoh...@arcor.de> wrote (Thu, 7 Aug 2014 15:35:28 +0200): > > > [forward due to wrongly replied privatly -hh-] > > > Found a lot of lǜlǚ on the net but cannot check my papers this > > month. Sorry. Syllables lu/lü and nu/nü may be ambiguous. It's the > > only use of ü. > > Yep. > > > Wikipedia talks about a ü-free PinYin and Chinese use > > us-keyboards. > > Maybe for *entering*. However, for correct display of Pinyin, you > definitely need `ǖǘǚǜ'. > > > So maybe, a ü is not a must for a transcription system, but that's > > on you (Bernd). I'm still unsure now, too long ago. > > > Werner > >