ماخذ: Sevcik, Otakar. Part I. General Introduction. 12 Major Scales. School of Intonation on an Harmonic Basis for Violin. Op.11.
ترجمه: Sevcik، Otakar. 12 فلس عمده. Sevcik، Otakar. Violin solo. Part IIa. The Semitone and Tritone. Part IIb. The Semitone and Tritone.