BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210131T000000Z DTEND:20210131T000000Z SUMMARY:CEST2021 - 17th International Conference on Environmental Science and Technology: Abstract submission deadline due before 31st January 2021 LOCATION:TBC,Athens,Greece END:VEVENT END:VCALENDAR