BEGIN:VCALENDAR PRODID:www.uu.nl VERSION:2.0 CALSCALE:GREGORIAN BEGIN:VEVENT UID:5c5c8bca92aa8680dfb299dd17880747 DTSTAMP:20251027T074215Z SUMMARY:Mathematics Education Seminar Online DESCRIPTION:ľ¹Ï¸£ÀûÓ°ÊÓ Students’ Actions with Digital Algebra Textbooks DTSTART:20210415T133000Z DTEND:20210415T150000Z LOCATION: X-ALT-DESC;FMTTYPE=text/html: END:VEVENT END:VCALENDAR