Sage Days 8.5
Dates you could come
- William Stein: any dates during June 13 - June 22, July 3 - July 13, July 26 - August 8.
- Michael Abshoff: pretty much any date except July 20–23, i.e. ISSAC 2008
- Martin Albrecht: most dates should be fine after June 14 until August 17 (CRYPTO)