1
Cometary Science after Hale-Bopp [E-Book] : Volume 1 Proceedings of IAU Colloquium 186 21–25 January 2002, Tenerife, Spain /
2
Cometary Science after Hale-Bopp [E-Book] : Volume 2 Proceedings of IAU Colloquium 186 21–25 January 2002, Tenerife, Spain /