@inproceedings{HGW1994,
               author = {H. Speckmann, G. Raddatz, W. Rosenstiel},
               title = {Improvement of learning results of the selforganizing map by calculating fractal dimensions},
               booktitle = {ESANN},
               year = {1994},
               address = {BrĂ¼ssel, Belgien}
}