author = { Williams, Jenevora AND Welch, Graham AND Howard, David M. },

title = { An exploratory baseline study of boy chorister vocal behaviour and development in an intensive professional context },

publisher = {Informa UK Limited},

isbn = {1401-5439},

isbn = {1651-2022},

keywords = { LPN and LVN , Speech and Hearing , Arts and Humanities (miscellaneous) },

year = {2005},

url = { http://slubdd.de/katalog?TN_libero_mab2 }