BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210430T000000Z DTEND:20210430T000000Z SUMMARY:5th International Conference Water resources and wetlands: Poster abstract deadline due before 30th April 2021 LOCATION:Hotel Delta, Tulcea,Tulcea,Romania END:VEVENT END:VCALENDAR