@article{heliosPlusPlus,
title = {Virtual laser scanning with HELIOS++: 
A novel take on ray tracing-based simulation 
of topographic full-waveform 3D laser scanning},
journal = {Remote Sensing of Environment},
volume = {269},
year = {2022},
issn = {0034-4257},
doi = {https://doi.org/10.1016/j.rse.2021.112772},
author = {Lukas Winiwarter and Alberto Manuel {Esmorís Pena}
and Hannah Weiser and Katharina Anders 
and Jorge {Martínez Sánchez} and Mark Searle and Bernhard Höfle}
}