1. Invertible Functions;Allender,1985
2. Isomorphisms and 1-L reductions;Allender,1986
3. E.W. Allender and R. Rubinstein. P-printable sets, submitted for publication. See also E. W. Allender, The complexity of sparse sets in P, op. cit. , pp. 1–11.
4. Polynomial Reducibilities and Complete Sets;Berman,1977
5. On isomorphisms and density of NP and other complete sets;Berman;SIAM J. Comput.,1977