Definability Problems for Modules and Rings. - Gabriel Sabbagh; Paul C. Eklof (J. Symb. Log., 1971)

Some Model Theory of Abelian Groups. - Paul C. Eklof (J. Symb. Log., 1972)

Classes Closed Under Substructures and Direct Limits. - Paul C. Eklof (Math. Log. Q., 1977)

The Ideal Structure of Existentially Closed Algebras. - Paul C. Eklof; Hans-Christian Mez (J. Symb. Log., 1985)

Modules of Existentially Closed Algebras. - Paul C. Eklof; Hans-Christian Mez (J. Symb. Log., 1987)

Categoricity results for L∞κ. - Paul C. Eklof; Alan H. Mekler (Ann. Pure Appl. Log., 1988)

Almost free modules - set-theoretic methods. - Paul C. Eklof; Alan H. Mekler (North-Holland, 1990)

Model Theory of Modules Over a Serial Ring. - Paul C. Eklof; Ivo Herzog (Ann. Pure Appl. Log., 1995)

Set theory generated by Abelian group theory. - Paul C. Eklof (Bull. Symb. Log., 1997)

'bottom'N as an abstract elementary class. - John T. Baldwin 001; Paul C. Eklof; Jan Trlifaj (Ann. Pure Appl. Log., 2007)