@article{10_4064_cm_11_1_13_16,
     author = {Roman Sikorski and T. Traczyk},
     title = {On free products of m-distributive {Boolean} algebras},
     journal = {Colloquium Mathematicum},
     pages = {13--16},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1963},
     doi = {10.4064/cm-11-1-13-16},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-11-1-13-16/}
}