1. 239,240Pu, 137Cs, 90Sr and 40K in different types of honey;Bunzl;Health Phys.,1981
2. Gamma exposures measurements on Mt. Tara;Djuric;Beograd: Veterinary Courier,1992
3. Long-lived (natural) radionuclides in the environment;Fisenne,1993
4. Radioactivity in the environment: Sources, distribution and surveillance;Kathren,1994
5. Determination of uranium in soil samples by different analytical methods;Knopke,1985