@article{SF_1993__46_1_135223,
     author = {S.L. Wismath},
     title = {The lattice of varieties of *-regular band monoids.},
     journal = {Semigroup forum},
     pages = {130--133},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1993},
     zbl = {0767.20023},
     url = {http://geodesic.mathdoc.fr/item/SF_1993__46_1_135223/}
}