@article{10_14712_1213_7243_2020_003,
     author = {Chajda, Ivan and L\"anger, Helmut},
     title = {Orthomodular lattices that are  horizontal sums of {Boolean} algebras},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {11--20},
     publisher = {mathdoc},
     volume = {61},
     number = {1},
     year = {2020},
     doi = {10.14712/1213-7243.2020.003},
     mrnumber = {4093425},
     zbl = {07217154},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2020.003/}
}