@article{MASLO_1985_35_1_a7,
     author = {Pt\'ak, Pavel},
     title = {Categories of orthomodular posets},
     journal = {Mathematica slovaca},
     pages = {59--65},
     year = {1985},
     volume = {35},
     number = {1},
     mrnumber = {783963},
     zbl = {0583.06005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1985_35_1_a7/}
}