@article{SF_1975__11_134140,
     author = {Wen-Jin Woa},
     title = {Minimal {GROUP} {CONGRUENCES.}},
     journal = {Semigroup forum},
     pages = {178--180},
     publisher = {mathdoc},
     volume = {11},
     year = {1975},
     url = {http://geodesic.mathdoc.fr/item/SF_1975__11_134140/}
}