For Viola. Classical (with piano accompaniment). Includes a high-quality printed music score and a compact disc containing a complete performance with soloist; then a second version with the accompaniment, minus you, the soloist. Published by Music Minus One

Viola and Piano. By Various. Arranged by Paul Doktor. String Solo. Size 9x12 inches. 32 pages. Published by G. Schirmer, Inc.

(Viola and Piano). By Various. Edited by Paul Doktor. String Solo. Softcover with CD. 56 pages. Published by G. Schirmer