BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CSOS//ORIS//EN CALSCALE:GREGORIAN BEGIN:VEVENT UID:9691 DTSTAMP:20260719T065537Z DESCRIPTION:Sandstones|Pískovce 2026 - E1
ORIS X-ALT-DESC;FMTTYPE=text/html:Sandstones|Pískovce 2026 - E1
ORIS URL:https://oris.ceskyorientak.cz/Zavod?id=9691 SUMMARY:OB DOK (E - MD) DTSTART:20260731T130000Z DTEND:20260731T170000Z END:VEVENT END:VCALENDAR