1. A perceptual study of registration in female singers;Schoenhard;NATS Bull,1982
2. Sound production in isolated human larynges;Berg;Ann NY Acad Sci,1968
3. Singing: the mechanism and the technique;Vennard,1968
4. Paratasis-gram of the vocal cords and the dimensions of the voice;Sonninen,1961
5. Contributions of voice research to singing,1980