TY  - DATA
AU  - Grinblat, L. S.
TI  - On sets not belonging to algebras of subsets 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470400576 (online)
PY  - 1992///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0480
ER  -