@ARTICLE{
author={Cheung TTK,Yu KN,Nikezic Dragoslav R},
year={2001},
title={Bronchial dosimeter for radon progeny},
journal={APPLIED RADIATION AND ISOTOPES},
volume={55},
number={5},
pages={707-713},
document_type={Article},
} 

@ARTICLE{
author={Yu KN,Cheung TTK,Haque AKMM,Nikezic Dragoslav R,Lau BMF,Vucic Dusica A},
year={2001},
title={Radon progeny dose conversion coefficients for Chinese males and females},
journal={JOURNAL OF ENVIRONMENTAL RADIOACTIVITY},
volume={56},
number={3},
pages={327-340},
document_type={Article},
}