TY  - JOUR
AU  - Radeleczki, Sándor
TI  - Classification systems and their lattice
JO  - Discussiones Mathematicae. General Algebra and Applications
PY  - 2002
SP  - 167
EP  - 181
VL  - 22
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DMGAA_2002_22_2_a6/
LA  - en
ID  - DMGAA_2002_22_2_a6
ER  -