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Daily, G.C., Ehrlich, A.H. & Ehrlich, P.R. Response to Bartlett and Lytwak (1995): Population and immigration policy in the United States. Popul Environ 16, 521–526 (1995). https://doi.org/10.1007/BF02208560
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DOI: https://doi.org/10.1007/BF02208560