Analysis and computation of projective invariants from multiple views in the geometric algebra framework
@Article{lasenby99ijprai,
  author = 	 {J. Lasenby and E. Bayro-Corrochano},
  title = 	 {Analysis and computation of projective invariants from multiple views in the geometric algebra framework},
  journal = 	 {International Journal of Pattern Recognition and Artificial Intelligence},
  year = 	 1999,
  volume =	 13,
  number =	 8,
  pages =	 {1105-1121}
}