Warning: mysqli_query(): (HY000/1021): Disk full (/tmp/#sql-temptable-8ef0-34a4-ce.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") in /var/www/liee.chemeng.ntua.gr/wp-includes/wp-db.php on line 2056 ΕΒΕΟ ΕΜΠ - Διεθνές Workshop “Intellectual Property: From History to Policy and Entrepreneurial Concerns”