@article{ARM_1981__17_4_a1,
     author = {Chvalina, Jan},
     title = {Note on compatible binary relations on algebras},
     journal = {Archivum mathematicum},
     pages = {185--190},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {1981},
     mrnumber = {672658},
     zbl = {0475.08003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1981__17_4_a1/}
}