D G · Dirk Geest · Dirk Gust
| title | ISBN-13 | year of publication |
|---|---|---|
| High Tech for Strings, Viola: Technical Studies and Solo Literature for String Orchestra and Individual Study | 978-0-8258-4172-9 | 2000 |
| O5473 - High Tech for Strings - Violin | 978-0-8258-4171-2 | 2000 |
| O5475 - High Tech for Strings: Cello | 978-0-8258-4173-6 | 2000 |
| O5476 - High Tech for Strings - Bass | 978-0-8258-4174-3 | 2000 |