1. RADIOLOGICAL SURVEY OF THERMAL BATH IN IGAL-HUNGARY. Authors: TIBOR KOVÁCS, VIKTOR JOBBÁGY, JÁNOS SOMLAI, NÓRA JÁNOKI.2. PARALLEL RADON AND THORON SURVEY AT SPECIAL UNDERGROUND CIRCUMSTANCES. Authors: GÁBOR SZEILER, TAMÁS VIGH, JÁNOS SOMLAI, CSABA NÉMETH, NORBERT KÁVÁSI, TIBOR KOVÁCS.3. INVESTIGATION OF RADON AND THORON IN DWELLINGS NEARBY A CLOSED HUNGARIAN URANIUM MINE. Authors: TIBOR KOVÁCS, VIKTOR JOBBÁGY, JÁNOS SOMLAI, NORBERT KÁVÁSI, CSABA NÉMETH.4. RADON AND RADON EXPOSURE OF WORKERS IN HUNGARIAN SHOW CAVES. Authors: TIBOR KOVÁCS, ANDRÁS VÁRHEGYI, GÁBOR SZEILER, JÓZSEF HAKL, NORBERT KÁVÁSI, JÁNOS SOMLAI.