BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210730T000000Z DTEND:20210730T000000Z SUMMARY:18th European Conference on Solid State 91AV : Standard registration deadline due before 30th July 2021 LOCATION:The National Library of Technology,Prague,Czech Republic END:VEVENT END:VCALENDAR