@article{BAG_1984__17_138263,
     author = {Barbara Schultz},
     title = {Gruppoide und boolesche {Strukturen}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {31--60},
     publisher = {mathdoc},
     volume = {17},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BAG_1984__17_138263/}
}