1. ABRAHAM, U., M. RUBIN and S. SHELAH [1981] To appear.
2. ABRAHAM, U. and S. SHELAH [1981] Isomorphism types of Aronszajn trees, to appear.
3. Martin's Axiom does not imply that every two N1-dense sets of reals are isomorphic;ABRAHAM;Israel J. Math.,1981
4. BAUMGARTNER, J. [1978] Iterated forcing, to appear in Proc. 1978 Cambridge Summer School in Set Theory.
5. BAUMGARTNER, J. [1981] PFA implies that there are no weak HFD's, and Foreword and Addendum, handwritten notes.