Nitrogen fluorescence in air for observing extensive air showersB. Keilhauer, M. Bohacova, M. Fraga, J. Matthews, N. Sakaki, Y. Tameda, Y. Tsunesada and A. UlrichEPJ Web of Conferences, 53 (2013) 01010DOI: https://doi.org/10.1051/epjconf/20135301010