BEGIN:VCALENDAR VERSION:2.0 PRODID:-//dhtmlXScheduler//NONSGML v2.2//EN X-WR-CALNAME:Wydarzenia BEGIN:VEVENT DTSTART:20170910T000000 DTEND:20170915T000000 UID:0 SUMMARY:44 Zjazd Fizyków Polskich END:VEVENT END:VCALENDAR