Originalno: Das Studium der Viola. Tomas Lestan. Hans Sitt. Viola sheet music. Das Studium der Viola edited by Ulrich Druner. For viola.
Prevod: Študija Viola. Tomas Leštan. Viola note. Študija Viola uredil Ulrich Druner. Za violo. Platnice. Viola-Etuden. Viola Etudes.