BEGIN:VCALENDAR VERSION:2.0 PRODID:-//TYPO3/NONSGML News system (news)//EN BEGIN:VEVENT UID: news-3665@www.math.uoa.gr DTSTAMP:20190317T170419Z DTSTART:20190321T131500 SUMMARY:Γενικό Σεμινάριο: On Steklov-type eigenvalues for the Laplace and the biharmonic operator END:VEVENT END:VCALENDAR