@article{DeReu,  	
 	author = {De Reu, J. and Bourgeois, J. and Bats, M. and Zwertvaegher, A. and Gelorini, V. and et al.},
	title = {Application of the topographic position index to heterogeneous landscapes},
  	journal = {Geomorphology},
  	volume = {186},        
	pages = {39–49},  	
  	year = {2013},
	doi = {10.1016/j.geomorph.2012.12.015}
	}
@MISC{EnvironmentAgency,
	author       ={{Environment Agency}},
	title        = {LIDAR Composite DTM 2019 - 2m (updated on May 20th 2020)},
	publisher = {United Kingdom Environment Agency},
	year         = {2020},
	url = {https://data.gov.uk/dataset/67639c1b-ac0e-492a-abba-02ed436f826f/lidar-composite-dtm-2019-2m}
	}

@article{Horn,
 	author = {Horn, B. K.},
	title = {Hill Shading and the Reflectance Map},
  	journal = {Proceedings of the IEEE},
  	volume = {69},
    	number = {1},
	pages = {14-47},  	
  	year = {1981},
	doi= {10.1109/PROC.1981.11918}
	}

@MISC{Jenness,
    	author       = {Jenness, J.},
    	title        = {Topographic Position Index (tpi_jen.avx). Extension for ArcView 3.x},
    	publisher = {Jenness Enterprises},
	year         = {2006},
   	address      = {Flagstaff (AZ)},
	url = {http://www.jennessent.com/arcview/tpi.htm} 
	}

@book{Kokalj&Hesse,  	
  	author = {Kokalj, Ž. and Hesse, R.},
    	title = {Airborne laser scanning raster data visualization: A Guide to Good Practice},
  	publisher = {Založba ZRC},
  	year = {2017},
    	url = {https://omp.zrc-sazu.si/zalozba/catalog/book/824}
	}

@article{saga,
        author = {Conrad, O. and Bechtel, B. and Bock, M. and Dietrich, H. and Fischer, E. and et al.},
	title = {System for Automated Geoscientific Analyses (SAGA) v. 2.1.4},
  	journal = {Geosci. Model Dev.},
  	volume = {8},
	pages = {1991-2007},  	
  	year = {2015},
        doi= {10.5194/gmd-8-1991-2015}
	}
	
@article{Zaksek,  	
  	Author = {Zakšek, K. and Oštir, K. and Kokalj, Ž.},
	Title = {Sky-View Factor as a Relief Visualization Technique},
  	Journal = {Remote Sensing},
  	volume = {2011},
	number = {3},
	pages = {398-415},  	
  	Year = {2011},
	doi = {10.3390/rs3020398}			
	}
	
@MISC{rvt,
        author       ={Kokalj, Ž. and Zakšek, K. and Oštir, K. and Pehani, P. and Čotar, K. and Somrak, M.},
	title        = {{Relief Visualization Toolbox (RVT)}},
	publisher = {Institute of Anthropological and Spatial Studies},
	year         = {2019},
	url = {https://iaps.zrc-sazu.si/en/rvt}
	}

