BEGIN:VCALENDAR VERSION:2.0 PRODID:-//TYPO3/NONSGML News system (news)//EN BEGIN:VEVENT UID: news-5191@www.math.uoa.gr DTSTAMP:20190712T101908Z DTSTART:20190715T163000 SUMMARY:Γενικό Σεμινάριο - "Weak containment and invariant random subgroups" END:VEVENT END:VCALENDAR