Original: Flute Methods, Studies and Ensembles. Three Grand Duets, Op. 39, Flute I. Three Grand Duets, Op. 39, Flute II. Version 2.0.
Traducción: Métodos de flauta, Estudos e Ensembles. Três Grandes Duets, op. 39, I Flute. Três Grandes Duets, op. 39, II Flute. Versão 2.0.