@article {3742,
	title = {Distribution of Fallout and Natural Gamma Radionuclides in Litter, Humus and Surface Mineral Soil Layers under Natural Vegetation in Great-Smoky-Mountains, North-Carolina-Tennessee},
	journal = {Health Physics},
	volume = {18},
	year = {1970},
	pages = {479-489},
	keywords = {Ecosystem, Soils},
	author = {Ritchie, Jerry Carlyle and Clebsch, Edward E. C and Rudolph, W. K}
}
