@article{cknt-cdr-09,
 author = {Chun, Jinhee and Korman, Matias and Nöllenburg, Martin and Tokuyama, Takeshi},
 doi = {10.1007/s00454-009-9166-2},
 journal = {Discrete and Computational Geometry},
 number = {3},
 pages = {359--378},
 title = {Consistent Digital Rays},
 volume = {42},
 year = {2009}
}