TY  - JOUR
AU  - Y. B. Jun
AU  - Yang Xu
TI  - Roughness of Filters in Lattice Implication Algebras
JO  - Bulletin of the Polish Academy of Sciences. Mathematics
PY  - 2004
SP  - 341
EP  - 352
VL  - 52
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ba52-4-1/
DO  - 10.4064/ba52-4-1
LA  - en
ID  - 10_4064_ba52_4_1
ER  -