First 3-beam lidar observations of Noctilucent Clouds (NLC) at mid-latitudesM. Gerding, R. Wing, G. Baumgarten, E. Franco-Diaz, T. Renkwitz and M. ClahsenEPJ Web Conf., 362 (2026) 04004DOI: https://doi.org/10.1051/epjconf/202636204004