# Sh:321

- Judah, H. I., & Shelah, S. (1989).
*\Delta^1_2-sets of reals*. Ann. Pure Appl. Logic,**42**(3), 207–223. DOI: 10.1016/0168-0072(89)90016-X MR: 998607 - published version (17p)

Bib entry

@article{Sh:321, author = {Judah, Haim I. and Shelah, Saharon}, title = {{$\Delta^1_2$-sets of reals}}, journal = {Ann. Pure Appl. Logic}, fjournal = {Annals of Pure and Applied Logic}, volume = {42}, number = {3}, year = {1989}, pages = {207--223}, issn = {0168-0072}, mrnumber = {998607}, mrclass = {03E15}, doi = {10.1016/0168-0072(89)90016-X} }