@article{PORMA_1988__45_2_115620,
     author = {Katrin\'ak, T. and Mikula, K.},
     title = {On a construction of {MS-algebras}},
     journal = {Portugaliae mathematica},
     pages = {157--163},
     publisher = {mathdoc},
     volume = {45},
     number = {2},
     year = {1988},
     mrnumber = {0952534},
     zbl = {0653.06005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1988__45_2_115620/}
}