TY  - JOUR
AU  - Chajda, Ivan
AU  - Emanovský, Petr
TI  - $\Sigma$-Hamiltonian and $\Sigma$-regular algebraic structures
JO  - Mathematica Bohemica
PY  - 1996
SP  - 177
EP  - 182
VL  - 121
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/MB.1996.126108/
DO  - 10.21136/MB.1996.126108
LA  - en
ID  - 10_21136_MB_1996_126108
ER  -