GABELMANN, H., LERCH, M., KRATZ, K. L., & RUDOLPH, W. (1984). DETERMINATION OF URANIUM IN URINE SAMPLES OF FUEL-ELEMENT FABRICATION WORKERS BY BETA-DELAYED NEUTRON COUNTING. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 223(2-3), 544-548. doi:10.1016/0167-5087(84)90707-5
GABELMANN, H., LERCH, M., KRATZ, K. L., & RUDOLPH, W. (1984). DETERMINATION OF URANIUM IN URINE SAMPLES OF FUEL-ELEMENT FABRICATION WORKERS BY BETA-DELAYED NEUTRON COUNTING. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 223(2-3), 544-548. doi:10.1016/0167-5087(84)90707-5