- Spies,
Horatio Connell and Hugo Goldschmidt. He
wrote an
excellent Gesangsmethode ("Singing Method") in 1884,
which was
translated into
English by his...
- Schott. p. 11.(in German) Stockhausen,
Julius (1884). Stockhausen's
Gesangsmethode. Mainz: Peters. p. 11.(in German) Mayer,
August Friedrich. "Ueber die...