BEGIN:VCALENDAR VERSION:2.0 PRODID:https://nabaltec.de/ BEGIN:VEVENT UID:event1809202467059ce4ae49c4.02435426 DTSTART:20240917T220000Z DTEND:20240919T215959Z SUMMARY:ICR International Colloqium on Refractories END:VEVENT END:VCALENDAR