MONDAY Soccer pools and lottery organization (OPAP) holds general extraordinary meeting. Institute of Communication holds a seminar on «Market Research and Marketing,» at 9.30 a.m. at the Central Hotel in Plaka. Tel. 210.331.8065 or log on to www.instofcom.gr. Livanis Publications presents Deputy Finance Minister Petros Doukas’s book titled «Economic Theories, Management Principles and Ancient Greek Thought,» at noon at the Hotel Grande Bretagne. Finance Minister Giorgos Alogoskoufis and Development Minister Dimitris Sioufas will speak. Tel. 210.366.1212. Hellenic American Union in cooperation with Encode company hold the Information Security Matrix Forum 2005 at the Divani Caravel Hotel. To Wednesday. Tel. 210.368.0907 or log on to www.securitymatrix.net. WEDNESDAY Hyatt Regency shareholders hold extraordinary general meeting at 11 a.m. at the Hotel Grande Bretagne in Athens. Athens News continues its series of lectures on «The Competitiveness of the Greek Economy 2005» at 6 p.m. at the cultural center of the University of Indianapolis in Plaka. Development Minister Dimitris Sioufas will speak. Tel. 210.323.6647 or 210.333.3700. THURSDAY Intracom shareholders hold extraordinary general meeting at 11 a.m. at company’s headquarters in Paeania. FRIDAY Comdex Greece 2005 digital technology exhibition opens at the Expo Athens exhibition center in Anthoussa. To Monday. Tel. 210.924.5577 or log on to www.comdexgreece.gr. Prefectural Authorities of Florina hosts the second exhibition and conference on «Alternative Forms of Tourism» in Florina. To Tuesday. Tel. 23850.46090-2. Seventh congress on «Aluminium Constructions and Products» starts at the Porto Carras Hotel in Halkidiki. To Monday. Tel. 210.494.5444 or log on to www.alunet.gr. Fifth national conference on «Non-Destructive Testing: Applications-New Developments» begins at the National Technical University of Athens. To Saturday. Tel. 210.772.3759 or log on to www.hsnt.gr.