@Article{shewchuk1997,
  author  = {Shewchuk, J. R.},
  title   = {Adaptive Precision Floating-Point Arithmetic and Fast Robust Geometric Predicates},
  journal = {Discrete \& Computational Geometry},
  volume  = {18},
  year    = {1997},
  pages   = {305--363},
  doi     = {10.1007/PL00009321}
}