A Proof of Halpern-Läuchli Partition Theorem. - Spiros A. Argyros; V. Felouzis; Vassilis Kanellopoulos (Eur. J. Comb., 2002)

Tree structures associated to a family of functions. - Spiros A. Argyros; Pandelis Dodos; Vassilis Kanellopoulos (J. Symb. Log., 2005)