BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20230531T000000Z DTEND:20230531T000000Z SUMMARY:13th International Vanadium Symposium: Oral abstract deadline due before 31st May 2023 LOCATION:Calouste Gulbenkian Foundation,Lisbon,Portugal END:VEVENT END:VCALENDAR