1. A’Hearn, M.F. (1986). “Are cometary nuclei like asteroids?” In C.-L Lagerkvist, B.A. Lindblad, H. Lundstedt, and H. Rickman (eds.), Asteroids, Comets, Meteors II, Uppsala Univ., 187–190.
2. Babadzhanov, P.B., and Ceplecha, Z. (1987). “Photographic data of extreme precision evaluated by exact single-body solution of meteor physics.” In Proc. 10th Europ. Regional Astronomy Meeting of the IAU, Praha, Vol. 2, 223–227.
3. Babadzhanov, P.B., Obrubov, J.V., Pushkarev, A.N., and Hajduk, A. (1987). “On the formation of meteor showers of comet Halley.” Bull. Astron. Inst. Czechosl. 38, 367–371.
4. Banaszkiewicz, M., Marconi, M., and Ip., W.-H. (1989). “Dust dynamics around cometary nuclei.” In C.-I. Lagerkvist, P. Magnusson, and H. Rickman (eds.), Asteroids, Comets, Meteors III, Abstracts, Uppsala Astronomical Observatory Report No. 48, 8.
5. Baum, W.A., and Kreidl, T.J. (1986). “Volatiles in cometary grains.” In C.-I. Lagerkvist, B.A. Lindblad, H. Lundstedt, and H. Rickman (eds.), Asteroids, Comets, Meteors II, Uppsala Univ., 397–402.