Effective Versions of Ramsey's Theorem: Avoiding the Cone above 0'. - Tamara Lakins Hummel (J. Symb. Log., 1994)

Sigma2-Constructions and I Sigma1. - Marcia J. Groszek; Tamara Lakins Hummel (Ann. Pure Appl. Log., 1998)

Generalized Cohesiveness. - Tamara Lakins Hummel; Carl G. Jockusch Jr. (J. Symb. Log., 1999)

Ramsey's Theorem for Computably Enumerable Colorings. - Tamara Lakins Hummel; Carl G. Jockusch Jr. (J. Symb. Log., 2001)