“Artificially lit surface of Earth at night increasing in radiance and extent”

C. M. Kyba, T. Kuester, A. Sánchez de Miguel, K. Baugh, A. Jechow, F. Hölker, J. Bennie, C.D. Elvidge, K.J. Gaston, L. Guanter Science Advances Vol. 3, no. 11 (2017)

“Statistical modelling and satellite monitoring of upward light from public lighting”

R. Estrada-García, M. García-Gil, L. Acosta, S. Bará, A. Sánchez-de-Miguel and J. Zamorano Lighting Research and Technology (April 2015)