Lichti GG, Bennett K, Bloemen H, DEBOER H, Busetta M, Collmar W, Connors A, Diehl R, van Dijk R, DENHERDER JW, et al. PRELIMINARY-RESULTS FROM COMPTEL ON A SEARCH FOR GAMMA-RAY LINE EMISSION FROM SN-1991T. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES [Internet]. 1993;97 :215–218.