BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20220531T000000Z DTEND:20220531T000000Z SUMMARY:9th IUPAC International Conference on Green 91AV (Hybrid): Early bird registration deadline due before 31st May 2022 LOCATION:Zappeion Megaron & On-line participation,Athens,Greece END:VEVENT END:VCALENDAR