1. Bayer, M.: 1969, “Nachweis und Ergebnisse von Kometen-Beobachtungen aus den Jahren 1921–1968”, Astron. Nach., 291, 257–264.
2. Beyer, M.: 1972, “Physische Beobachtungen von Kometen XVII”, Astron. Nach., 293, 241–257.
3. Bobrovnikoff, N. T.: 1941, “Investigations of the Brightness of Comets, PartI”, Contr. of the Perkins Observatory, No. 15.
4. Bobrovnikoff, N. T.: 1942, “Investigations of the Brightness of Comets, Part II”, Contr. of the Perkins Observatory, No. 16.
5. Bortle, J. E. 1991, “Post-perihelion Survival of Comets with Small q“ Inter. Comet Quart., 13, 89–91.