%0 conference paper,conference lecture %@ %A Okamoto, H.,Mukai, T.,Kozasa, T. %D 1993 %J IAU Symposium 160: Asteroids, Comets, Meteors 1993 (LPI Contribution No. 810); Abstracts %N %P 239 %T The 10 micro-m feature of aggregates in comets %U %X