A framework for land cover classification using discrete return LiDAR data: Adopting pseudo-waveform and hierarchical segmentationJung, J., Pasolli, E., Prasad, S., Tilton, J. C., Crawford, M. M.IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2014, 7(2), 491-502DOI: 10.1109/JSTARS.2013.2292032PublisherPDF