Show 15 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="Cha, Nicholas" or (type any "bookEditor journalEditor issueEditor" and editor="Cha, Nicho... Add to list Journal Article A1 Normative speech data in professional opera singers : a retrospective study Andrew Tawfik, Nicholas Cha, Imke Kissel (UGent) , Ghiath Alnouri and Robert T. Sataloff (2023) JOURNAL OF VOICE. 37(3). p.362-365