Kappadath SC, McConnell M, Ryan J, Bennett K, Winkler C, Bloemen H, Hermsen W, Schoenfelder V, Varendorff M, Weidenspointner G. COMPTEL Measurements of the Cosmic Diffuse Gamma-Ray Spectrum from 800 keV to 30 MeV, in AAS/High Energy Astrophysics Division #4. Vol 31. ; 1999 :737–737.