@article{EisemannEtAl07,
  author = "Martin Eisemann and Thorsten Grosch and Stefan Müller and Marcus Magnor",
  title = "Fast Ray/Axis-Aligned Bounding Box Overlap Tests using Ray Slopes",
  journal = "journal of graphics tools",
  volume = "12",
  number = "4",
  pages = "35-46",
  year = "2007",
}