BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20220306T000000Z DTEND:20220306T000000Z SUMMARY:4th Oldenburg Symposium on Chemical Bond Activation: Standard registration deadline due before 6th March 2022 LOCATION: END:VEVENT END:VCALENDAR