Harold C. Schonberg, Newport Opera to Do 3 Concerts a Day, 5 July 1978, The New York Times 2 Chamber Groups Win ’80 Naumburg Awards, 9 April 1980, The New York Times.
Harold C. Schonberg, Newport Opera to Do 3 Concerts a Day, 5 lipca 1978, The New York Times 2 Chamber Groups Win ’80 Naumburg Awards, 9 kwietnia 1980, The New York Times.