Planetary and space science. Oxford, London, New York, Paris. 1966 v.14 N 1,2,3,4,5,6,7,8, ,10, ,12 1969 v.16 N 1,2,3,4,5,6,7,8,9,10,11 1970 v.18 N 1,2,3,4,5,6,7,8,9, ,11,12 1972 v.20 N 1,2,3,4,5,6,7,8,9,10,11,12 1994 v.42 N 2 (Spec. Iss. Asteroids, Comets and Meteors 1993-I) N 12 (Spec. Iss.Catastrophic Disruption of Small Solar System Bodies, Gubbio (I), 21-23 June 1993