Algorithmic Learning Theory 9th International Conference, ALT'98, Otzenhausen, Germany, October 8-10, 1998 Proceedings - Richter, Michael M.; Richter, Michael M.; Smith, Carl H.; Smith, Carl H.; Wiehagen, Rolf; Wiehagen, Rolf; Zeugmann, Thomas; Zeugmann, Thomas (Springer Berlin Heidelberg : Imprint: Springer, 1998)