BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210122T000000Z DTEND:20210122T000000Z SUMMARY:4th International Conference on Applied Surface 新月直播app下载: Oral abstract deadline due before 22nd January 2021 LOCATION:Online,Online,United Kingdom END:VEVENT END:VCALENDAR