1. Concerto in One Movement Collection: Concert Programs (SOM) Contributers: Lebedev (composer), Jeff Jensen (bass trombone), and Wilma Ford (pianist) Performance: Junior Recital Performance Date: 1977-03-24 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.237
2. Sonata Breve Collection: Concert Programs (SOM) Contributers: Hartley (composer) and Jeff Jensen (bass trombone) Performance: Junior Recital Performance Date: 1977-03-24 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.237