@article{CMUC_1982__23_3_a11,
     author = {Hauschild, Kurt},
     title = {Model-theoretic properties of cause-and-effect structures},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {541--555},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1982},
     mrnumber = {677862},
     zbl = {0522.03005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1982__23_3_a11/}
}