1. A unified approach to learnability;Apolloni,1990
2. PAC Learning is easier than expected;Apolloni,1992
3. Classifying learnable geometrical concepts with the Vapnik-Chervonenkis dimension;Blumer,1986
4. Learnability and the Vapnik-Chervonenkis dimension;Blumer;J. ACM,1989
5. A general lower-bound on the number of examples needed for learning;Ehrenfeucht;Inform. Comput.,1988