@article{10_21136_CMJ_1972_101074,
     author = {Wiegandt, Richard},
     title = {On the structure of lower radical semigroups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {1--6},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1972},
     doi = {10.21136/CMJ.1972.101074},
     mrnumber = {0292983},
     zbl = {0238.20081},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101074/}
}