@article{MZ_1966__92_170571,
     author = {V. Baumann and J. Pfanzagl},
     title = {The {Closure} {Operator} in {Partial} {Algebras} with {Distributive} {Operations.} {Applications} to {Set} {Algebra,} {Measure} {Theory} and {Linear} {Spaces.}},
     journal = {Mathematische Zeitschrift},
     pages = {416--424},
     publisher = {mathdoc},
     volume = {92},
     year = {1966},
     zbl = {0201.35001},
     url = {http://geodesic.mathdoc.fr/item/MZ_1966__92_170571/}
}