@article{Mattern04:COA,<br>  title = {Comparison of Appearance Based Methods for Generic Object Recognition},<br>  journal = {Pattern Recognition and Image Analysis. Advances in Mathematical Theory and Applications (PRIA)},<br>  author = {Frank Mattern and Joachim Denzler},<br>  year = {2004},<br>  pages = {255--261},<br>}<br>