TY  - JOUR
AU  - Karásek, Jiří
TI  - Cardinal and ordinal arithmetics of $n$-ary relational systems and $n$-ary ordered sets
JO  - Mathematica Bohemica
PY  - 1998
SP  - 249
EP  - 262
VL  - 123
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/MB.1998.126071/
DO  - 10.21136/MB.1998.126071
LA  - en
ID  - 10_21136_MB_1998_126071
ER  -