Low-Level Image Processing with the Structure Multivector
@PhdThesis{felsberg02thesis,
  author = 	 {M. Felsberg},
  title = 	 {Low-Level Image Processing with the Structure Multivector},
  school = 	 {Inst. f. Informatik u. Prakt. Math. der Christian-Albrechts-Universit{"a}t zu Kiel},
  year = 	 2002,
  }