1. Commission of the European Community. 1986. Results of environmental radioactivity measurements in the Member States of the European Community for air, deposition, water, milk 1982-83. Radiat. Prot. No. 44. EUR 10235 DA, DE, GR, EN, FR, IT, NL. CEC Directorate Health and Safety, Luxembourg, Luxembourg.
2. Commission of the European Community. 1989. Environmental radioactivity in the European Community 1984-1985-1986. Radiat. Prot. No. 46. EUR 12254. Joint Res. Ctr., Ispra, E.U. DG XI, Luxembourg, Luxembourg.
3. Commission of the European Community. 1994. Environmental Radioactivity in the European Community 1987-88-89-90. Radiat. Prot. No. 47. EUR 15699, Joint Res. Ctr., Ispra, E.U. DG XI, Luxembourg, Luxembourg.
4. Radioactive pollution of the area of NRC “Demokritos” due to the 90Sr and 137Cs during the years 1965 and 1966;Douvogiannis;Chim. Chronika,1967
5. The organized system of the measurements of the radioactivity in foodstuffs;Douvogiannis;Chim. Chronika,1968