1. Bestimmung von Firnrücklagen am Eischield Jungfraujoch durch Messung der Gesamt-Betaaktivität von Firnproben;Ambach;Z. Gletscherk. Glazialgeol.,1971
2. Analytical Method NO. 8;Atomic Absorption Analytical Methods,1972
3. Radium content in rainwater;Banerji;Nature, Lond.,1966
4. Radiological survey around power plants using fossil fuel;Bedrosian;US Environmental Protection Agency, Report of Eastern Environmental Research Laboratory,1970
5. Rapid determination of lead-210 and polonium-210 in environmental samples in deposition on nickel;Blanchard;Analyt. Chem.,1966