TY  - JOUR
AU  - Ježek, Jaroslav
TI  - The lattice of equational theories. Part I: Modular elements
JO  - Czechoslovak Mathematical Journal
PY  - 1981
SP  - 127
EP  - 152
VL  - 31
IS  - 1
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1981.101731/
DO  - 10.21136/CMJ.1981.101731
LA  - en
ID  - 10_21136_CMJ_1981_101731
ER  -