@misc{weitkamp_lidar_measurements_1996, 
author={Weitkamp, C.},
title={Lidar measurements of atmospheric constituents},
year={1996},
howpublished = {conference lecture: Varna (BG); September 16-20, 1996},
note = {Online available at: \url{} (DOI). Weitkamp, C.: Lidar measurements of atmospheric constituents. Ninth International School on Quantum Electronics – Lasers – Physics and Applications. Varna (BG), 1996.}}