Analytic Number Theory: In Honor of Helmut Maier’s 60th Birthday

Combinatorial Number Theory: Proceedings of the 'Integers Conference 2005' in Celebration of the 70th Birthday of Ronald Graham, Carrollton, Georgia, October 27-30, 2005

Combinatorial Number Theory: Proceedings of the 'Integers Conference 2007', Carrollton, Georgia, USA, October 24—27, 2007

Combinatorial Number Theory: Proceedings of the "Integers Conference 2011", Carrollton, Georgia, USA, October 26-29, 2011