J. Hernández, und M. Ram\'ırez. Proc. of 9th International Workshop on Inductive Logic
Programming, Volume 1634 von Lecture Notes in Artificial Intelligence, Springer-Verlag, Berlin, (1999)
J. Hernández-Orallo, und M. Ramírez-Quintana. Proc. of 9th International Workshop on Inductive Logic Programming, Volume 1634 von Lecture Notes in Artificial Intelligence, Springer-Verlag, Berlin, (1999)