@inproceedings{becker2008a,
  author = {Steffen Becker and Heiko Koziolek and Ralf Reussner},
  title = {{T}he {P}alladio component model for model-driven performance prediction},
  journal = JSS,
  year = {2009},
  volume = {82},
  pages = {3--22},
  doi = {10.1016/j.jss.2008.03.066},
  publisher = {Elsevier Science Inc.},
  url = {http://dx.doi.org/10.1016/j.jss.2008.03.066}
}

@inproceedings{wanger1992effect,
  title={The effect of shadow quality on the perception of spatial relationships in computer generated imagery},
  author={Wanger, Leonard},
  booktitle={Proceedings of the 1992 symposium on Interactive 3D graphics},
  pages={39--42},
  year={1992},
  organization={ACM}
}

@MISC{WikiBild1,
    author = {{Wikipedia, the free encyclopedia}},
    title = {Kernschatten und Halbschatten},
    year = {2013},
    note = {[Online; accessed May 17, 2016]},
    url = {https://en.wikipedia.org/wiki/File:Kernschatten_und_Halbschatten.svg}
}

@book{sherrod2008game,
  title={Game Graphic Programming},
  author={Sherrod, Allen},
  pages={399},
  year={2008},
  publisher={Cengage Learning}
}

  @online{computerphile,
        title = {Lights and Shadows in Graphics},
        date = {2014},
        organization = {Youtube},
        author = {John Chapman},
        url = {https://www.youtube.com/watch?v=LUjXAoP5GG0},
    }

@book{akenine2008real,
  title={Real-time rendering},
  author={Akenine-M{\"o}ller, Tomas and Haines, Eric and Hoffman, Naty},
  year={2008},
  publisher={CRC Press}
}

@inproceedings{heckbert,
	title={Fast soft shadows},
	author={Paul S. Heckbert and Michael Herf},
	booktitle={Visual Proceedings SIGGRAPH 96},
	pages={145},
  	year={1996},
  	organization={ACM Press}
}

@book{brabec2004shadow,
  title={Shadow Techniques for Interactive and Real Time Applications},
  author={Brabec, Stefan},
  year={2004},
  publisher={Cuvillier Verlag}
}

@inproceedings{williams1978casting,
  title={Casting curved shadows on curved surfaces},
  author={Williams, Lance},
  booktitle={ACM Siggraph Computer Graphics},
  volume={12},
  number={3},
  pages={270--274},
  year={1978},
  organization={ACM}
}

@online{peter,
        title = {Common Techniques to Improve Shadow Depth Maps},
        organization = {Microsoft},
        url = {https://msdn.microsoft.com/en-us/library/windows/desktop/ee416324(v=vs.85).aspx},
    }
@article{hourcade1985algorithms,
  title={Algorithms for antialiased cast shadows},
  author={Hourcade, J Charles and Nicolas, A},
  journal={Computers \& Graphics},
  volume={9},
  number={3},
  pages={259--265},
  year={1985},
  publisher={Elsevier}
}

@inproceedings{stamminger2002perspective,
  title={Perspective shadow maps},
  author={Stamminger, Marc and Drettakis, George},
  booktitle={ACM Transactions on Graphics (TOG)},
  volume={21},
  number={3},
  pages={557--562},
  year={2002},
  organization={ACM}
}

@online{CSM,
        title = {Cascaded Shadow Maps},
        organization = {Microsoft},
        url = {https://msdn.microsoft.com/en-us/library/windows/desktop/ee416307(v=vs.85).aspx},
    }