Schott Musik und Tiere Violine, Sheet Music for Piano, 21 Original pieces and arrangements for violin and piano, 21 Mainly classical pieces for violin and piano, Edited by Wolfgang Birtel, Fingering and strokes with the assistance of Barbara Leichtweis-Birtel, Medium to advanced level of difficulty, ISMN 9790001215640, publisher's no. ED 23524, Format: 23 x 30 cm, 78 / 40 pages