@article{10_21136_CMJ_1981_101731,
     author = {Je\v{z}ek, Jaroslav},
     title = {The lattice of equational theories. {Part} {I:} {Modular} elements},
     journal = {Czechoslovak Mathematical Journal},
     pages = {127--152},
     publisher = {mathdoc},
     volume = {31},
     number = {1},
     year = {1981},
     doi = {10.21136/CMJ.1981.101731},
     mrnumber = {604120},
     zbl = {0477.08006},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1981.101731/}
}