BEGIN:VCALENDAR VERSION:2.0 PRODID:-//TYPO3/NONSGML News system (news)//EN BEGIN:VEVENT UID: news-20341@www.math.uoa.gr DTSTAMP:20210518T121703Z DTSTART:20210521T151500 SUMMARY:Σεμινάριο Εφαρμοσμένης Ανάλυσης & ΜΔΕ: Direct and inverse Sturm-Liouville problems: A method of solution END:VEVENT END:VCALENDAR