author= {Keysers, Daniel},
title= {Approaches to Invariant Image Object Recognition},
school= {Human Language Technology and Pattern Recognition Group, RWTH Aachen University},
year= 2000,
address= {Aachen, Germany},
month= jun,
pdf = {https://www-i6.informatik.rwth-aachen.de/publications/downloader.php?id=42&row=pdf}