BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20170531T000000Z DTEND:20170531T000000Z SUMMARY:4th International Workshop on Pericyclic Reactions and Synthesis of Hetero- and Carbocyclic Systems: Standard registration deadline due before 31st May 2017 LOCATION:University of Milan,MIlan,Italy END:VEVENT END:VCALENDAR