Gas and dust release rates and color of dust in comets P/Halley (1986 III), P/Giacobini-Zinner (1985 XIII), and P/Hartley-Good (1985 XVII) - Singh, Patan Deen; Huebner, W F; Costa, Roberto Dell'Aglio Dias da; Landaberry, S. J. C.; Freitas Pacheco, José Antonio (Planetary and Space Science, 1997)