1. Derived emergency reference levels for the introduction of countermeasures in the early to intermediate phases of emergencies involving the release of radioactive materials to the atmosphere;NRPB;NRPB-DL10,1986
2. Schenelle Trockenveraschung von Lebensmitteln;Boppel,1971
3. Analytical procedures for the determination of strontium radionuclides in environmental materials;Harvey,1989
4. Measurements of 89Sr and 90Sr in environmental samples by a low-background beta-ray spectrometer;Kamada,1971
5. Determination of 90Y, 90Sr and 89Sr in samples by use of liquid scintillation beta spectroscopy;Piltingsrud;Health Phys.,1972