Institute of Rock Mechanics and Tunnelling Rechbauerstraße 12 A-8010 Graz Phone: +43 (0) 316 / 873 - 8114 Fax: +43 (0) 316 / 873 - 8618 Email: tunnelnoSpam@tugraz.at Secretariat: Monday to Friday from 9 to 12 a.m.