@article{RichterDoellner2014, author = {Rico Richter and J{\"u}rgen Roland Friedrich D{\"o}llner}, title = {Concepts and techniques for integration, analysis and visualization of massive 3D point clouds}, journal = {Computers, environment and urban systems}, volume = {45}, pages = {114 -- 124}, doi = {10.1016/j.compenvurbsys.2013.07.004}, year = {2014}, }