@article{ARM_1974__10_3_a3,
     author = {Tran Duc Mai},
     title = {Partitions and congruences in algebras. {III.} {Commutativity} of congruences},
     journal = {Archivum mathematicum},
     pages = {173--187},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {1974},
     mrnumber = {0417022},
     zbl = {0326.08003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1974__10_3_a3/}
}