@article{BAG_1987__24_138364,
     author = {Klaus Denecke},
     title = {Functional completeness in pseudocomplemented de {Morgan} algebras},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {135--150},
     publisher = {mathdoc},
     volume = {24},
     year = {1987},
     zbl = {0612.08004},
     url = {http://geodesic.mathdoc.fr/item/BAG_1987__24_138364/}
}