^"Heard and Seen: The fifth Hungarian jazz festival". Coda. ج. 9 رقم 2. يوليو–أغسطس 1969. ص. 44. The Gonda-Kruza Quartet is a leading Hungarian jazz group. Janos Gonda, famous pianist, composer and arranger, leader of the jazz faculty at Bartok Conservatory in Budapest, is the well-known author of the best book on jazz in this country. Richard Kruza, a Polish vibraphone player . is co-founder of the ensemble. The quartet plays very modern jazz with certain free elements. They played a very nice free version of Django, and two long originals by the leaders: Gonda and Kruza. This group got the second place of the Alba Regia Prize, and a special prize given by the organizers of 'Rona' jam sessions in Cegled.
^Gonda, Janos (Nov 1983). "Jazz Education: Improvisation and Creativity". International Journal of Music Education (بالإنجليزية): 19–22. DOI:10.1177/025576148300200104.