S. Kaski, J. Nikkilä, and T. Kohonen. Proceedings of the Sixth European Symposium on Artificial Neural Networks, page 185--190. Brussels, De Facto, (1998)
S. Kaski, J. Nikkilä, and T. Kohonen. Proceedings of the Sixth European Symposium on Artificial Neural Networks, page 185--190. Brussels, De Facto, (1998)