H. Zollner, R. Sablatnig:
"A Method for Determining Geometrical Distortion of Off-The-Shelf Wide-Angle Cameras";
in: "Proc. of the 27th DAGM Symposium", W. Kropatsch, R. Sablatnig, A. Hanbury (ed.); Springer, LNCS, Berlin Heidelberg, New York, 2005, 224 - 229.