@incollection{TUW-269599, author = {Pfeifer, Norbert and Mandlburger, Gottfried}, title = {lidar data filtering and digital terrain model generation}, booktitle = {Topographic Laser Ranging and Scanning - Principles and Processing, Second Edition}, year = {2018}, editor = {Shan, Jie and Toth, Charles K.}, pages = {349--378}, publisher = {CRC Press}, address = {Boca Raton}, isbn = {9781498772273}, note = {invited} }