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METHOD:PUBLISH
BEGIN:VEVENT
SUMMARY:23. Summer School Renewable Energy 
DTSTART:20080901T103000
DTEND:20080912T163000
UID:2026-04-26-09-19-32-0-@calendar.boell.de
DTSTAMP:20260426T071932
DESCRIPTION:Landesstiftung Nordrhein-Westfalen
END:VEVENT
END:VCALENDAR