TY  - DATA
AU  - D. Dikranjan, Walter Tholen
TI  - Categorical Structure of Closure Operators
SN  - 9789401584005
PY  - 1995///
PB  - Springer Netherlands
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-94-015-8400-5
ER  -