From The Ground Up I: Light Pollution Sources in Flagstaff, ArizonaC. B. Luginbuhl, Jennifer Selders, Donald R. Davis et al.|Publications of the Astronomical Society of the Pacific|2009Cited by 78
From the Ground Up II: Sky Glow and Near-Ground Artificial Light Propagation in Flagstaff, ArizonaC. B. Luginbuhl, Donald R. Davis, Dan M. Duriscoe et al.|Publications of the Astronomical Society of the Pacific|2009Cited by 77