@article{MZ_1977__153_172493,
     author = {Christian Rall},
     title = {\"Uber {Boolesche} {Algebren} von {Projektionen.}},
     journal = {Mathematische Zeitschrift},
     pages = {199--218},
     publisher = {mathdoc},
     volume = {153},
     year = {1977},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1977__153_172493/}
}