BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20250530T000000Z DTEND:20250530T000000Z SUMMARY:European Congress on Nanomaterials: Standard registration deadline due before 30th May 2025 LOCATION:Candia Hotel,Athens,Greece END:VEVENT END:VCALENDAR