Double Jumps of Minimal Degrees. - Carl G. Jockusch Jr.; David B. Posner (J. Symb. Log., 1978)

Diagonalization in Degree Constructions. - David B. Posner; R. Epstein (J. Symb. Log., 1978)

The Upper Semilattice of Degrees <0? Is Complemented. - David B. Posner (J. Symb. Log., 1981)

Degrees Joining to 0? - David B. Posner; Robert W. Robinson (J. Symb. Log., 1981)

Design of an Optimizing, Dynamically Retargetable Compiler for Common Lisp. - Rodney A. Brooks; David B. Posner; James L. McDonald; Jon L. White; Eric Benson; Richard P. Gabriel (LISP and Functional Programming, 1986)