@article {27071,
	title = {"A Method to Evaluate the Dependence of Ge(Li) Spectrometer Efficiency Slopes on the Counting Rate and Source-to-Detector Distances"},
	journal = {ATOMKERNENERGIE},
	volume = {33},
	year = {1979},
	pages = {50-51},
	author = {H. Abou-Leila and H. A. Ismail and S.M. Darwish and M. Kamel and M. El Ashry}
}
