Ronca-Battista, M A comparison of the variability of different techniques and sampling periods for measuring 222Rn and its decay products. [electronic resource] - Health physics Nov 1988 - 801-7 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0017-9078 Subjects--Topical Terms: Bismuth--analysisHousingLead--analysisPolonium--analysisRadiometry--instrumentationRadon--analysisRadon Daughters