A new approach to an old problem of Erdős and Moser.

Hoi H. Nguyen A new approach to an old problem of Erdős and Moser. 977-993 2012 119 J. Comb. Theory, Ser. A 5 http://dx.doi.org/10.1016/j.jcta.2012.01.003 db/journals/jct/jcta119.html#Nguyen12