@article{SM_1990_65_2_a9,
     author = {V. B. Repnitskii and S. I. Katsman},
     title = {Commutative semigroups with lattice of subsemigroups satisfies a nontrivial identity},
     journal = {Sbornik. Mathematics},
     pages = {465--485},
     publisher = {mathdoc},
     volume = {65},
     number = {2},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1990_65_2_a9/}
}