TY  - BOOK
AU  - Gratzer, George
TI  - The congruences of a finite lattice: a "proof-by-picture" approach
SN  - 9783319387963
U1  - 512.544.2 
PY  - 2016///
CY  - Switzerland
PB  - Birkhauser
KW  - MATHEMATICS
KW  - LATTICE THEORY
ER  -