Pose Estimation Using Geometric Constraints
@TechReport{sommerTR2003,
  author = {G. Sommer and B. Rosenhahn and Y. Zhang},
  title = {Pose Estimation Using Geometric Constraints},
  institution = {Christian-Albrechts-Universit{"a}t zu Kiel, 
       Institut f{"u}r Informatik und Praktische Mathematik},
  type = {Technical Report},
  number = {Number 2003},
  month =      {M{"a}rz},
  year = 2000,
  }