TY  - DATA
AU  - S. Shelah
TI  - Proper Forcing
T2  - Lecture Notes in Mathematics
SN  - 9783662215432
PY  - 1982///
CY  - Heidelberg
PB  - Springer Berlin
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-3-662-21543-2
ER  -