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  Author (up) Title Year Publication Volume Pages Links
Albers, S.; Duriscoe, D.M. Modeling light pollution from population data and implications for National Park Service lands. 2001 George Wright Forum 18 56-68 details   url
Andre, J.; Owens, D.A. The Twilight Envelope: A User-Centered Approach to Describing Roadway Illumination at Night 2001 Human Factors: The Journal of the Human Factors and Ergonomics Society 43 620-630 details   url
Böttcher, M. Auswirkungen von Fremdlicht auf die Fauna im Rahmen von Eingriffen in Natur und Landschaft. 2001 Bonn: Bundesamt für Naturschutz 192 details   openurl
Bortle, J.E. Introducing the Bortle Dark-Sky Scale. 2001 Sky & Telescope 126-129 details   url
Brainard, G.C.; Hanifin, J.P.; Greeson, J.M.; Byrne, B.; Glickman, G.; Gerner, E.; Rollag, M.D. Action spectrum for melatonin regulation in humans: evidence for a novel circadian photoreceptor. 2001 Journal of Neuroscience 21 6405-6412 details   url
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