A Lower Bound for Families of Natarajan Dimension d.

Paul Fischer Jirí Matousek A Lower Bound for Families of Natarajan Dimension d. 189-195 2001 95 J. Comb. Theory, Ser. A 1 http://dx.doi.org/10.1006/jcta.2000.3160 db/journals/jct/jcta95.html#FischerM01