BEGIN:VCALENDAR
PRODID:-//AT Content Types//AT Event//EN
VERSION:1.0
BEGIN:VEVENT
DTSTART:20091113T160000Z
DTEND:20091113T170000Z
DCREATED:20091112T145514Z
UID:ATEvent-abbc541a8ad3ab3da479de5476d5698d
SEQUENCE:0
LAST-MODIFIED:20091112T145521Z
SUMMARY:Cheeger constants\, exponential growth and spectrum of planar graphs
DESCRIPTION:by Matthias Keller (Mathematical Institute\, FSU Jena\, Ge
 rmany)
LOCATION:CIUL\, A2-25
PRIORITY:3
TRANSP:0
END:VEVENT
END:VCALENDAR