BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210210T000000Z DTEND:20210210T000000Z SUMMARY:ECHC 2021 - XXIX European Colloquium on Heterocyclic 91AV: Oral abstract deadline due before 10th February 2021 LOCATION:Online,Online,France END:VEVENT END:VCALENDAR