BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210622T000000Z DTEND:20210622T000000Z SUMMARY:Kelvin probe force microscopy and spectroscopy: Standard registration deadline due before 22nd June 2021 LOCATION:Online,Germany END:VEVENT END:VCALENDAR