Boehm, J;    Rutzinger, M;    Yang, B;    Weinmann, M;    Riveiro, B;    Yao, W;      (2019)    Preface – ISPRS Workshop Laser Scanning 2019.                     In: Lichti, Derek D and Weng, Qihao, (eds.) Proceedings of ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences.  (pp. pp. 313-315).  ISPRS: Enschede, The Netherlands.       Green open access