1. Report on the intercomparison of determinations of selected radionuclides and trace elements in water W-1, W-2, and W-3 (1975–1976);Dybczynski,1976
2. Report on the Intercomparison Run H-1/1, for the determination of U, Th and Pu-239 in human urine IAEA/RL/48;Dybczynski,1978
3. The estimation of accuracy in trace analysis. Results obtained from intercomparisons organized by the IAEA;Gorski;National Bureau of Standards Special Publication 422,1976
4. IAEA laboratory activities;International Atomic Energy Agency,1964
5. Analytical quality control in environmental analysis. Recent results and future trends of the IAEAs analytical quality control programme;Suschny,1973