TY - JOUR A1 - Pardue, J H A1 - Guo, T Z T1 - Biogeochemistry of Ra-226 in contaminated bottom sediments and oilfield waste pits. Y1 - 1998// N1 - R825513C005 JF - JOURNAL OF ENVIRONMENTAL RADIOACTIVITY J1 - J ENVIRON RADIOACTIV VL - 39 IS - 3 SP - 239 EP - 253 ER -