Contact Email: lakis at inf dot elte dot hu Office: Room 2.506, 2nd floor, Southern Building Postal address: Department of Information Systems, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117 Budapest, Hungary. Phone: +36 1 372 2869 / 8477 (Please use email to reach me.) Office hours: Monday 13-14