T. Kohonen, K. Mäkisara, and T. Saramäki. Proceedings of the 6th International Conference on Pattern Recognition, page 182--185. Silver Spring, MD, IEEE Computer Society Press, (1984)
T. Kohonen, K. Mäkisara, and T. Saramäki. Proceedings of the 6th International Conference on Pattern Recognition, page 182--185. Silver Spring, MD, IEEE Computer Society Press, (1984)