1. Atmospheric heavy metal deposition in the Copenhagen area;Andersen;Envir. Pollut.,1978
2. Wet deposition of heavy metals;Barrie,1989
3. Routine neutron activation analysis in environmental samples;Bode,1990
4. Retention of trace elements to surfaces of funnels of rain water samplers;De Boer,1989
5. Rain water-sampling of the deposition;Dutch Norm (NEN);NEN 6575,1984