Lidar Observation of the 2014 Kelut Volcanic Stratospheric Aerosols at Kototabang, IndonesiaMakoto Abo, Yasukuni Shibata and Chikao NagasawaEPJ Web of Conferences, 119 (2016) 07005DOI: https://doi.org/10.1051/epjconf/201611907005