Sh:177

Bib entry
@article{Sh:177,
 author = {Shelah, Saharon},
 title = {{More on proper forcing}},
 journal = {J. Symbolic Logic},
 fjournal = {The Journal of Symbolic Logic},
 volume = {49},
 number = {4},
 year = {1984},
 pages = {1034--1038},
 issn = {0022-4812},
 mrnumber = {771775},
 mrclass = {03E40},
 doi = {10.2307/2274259}
}