Constraining lidar stand-alone retrievals with lunar photometry measurements Pablo Ortiz-Amezcua, Juan Luis Guerrero-Rascado, Jose Antonio Benavent-Oltra, Roberto Román, Christine Böckmann and Lucas Alados-Arboledas EPJ Web Conf., 176 (2018) 08018 Published online: 13 April 2018 DOI: 10.1051/epjconf/201817608018