BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20190301T000000Z DTEND:20190301T000000Z SUMMARY:SPb Photonic, Optoelectronic, & Electronic Materials SPb-POEM: Poster abstract deadline due before 1st March 2019 LOCATION:Saint-Petersburg Academic University,Sankt-Peterburg,Russian Federation END:VEVENT END:VCALENDAR