@article{MSC_1997_1997_1_a7,
     author = {Lu, James J. and Calmet, Jacques and Sch\"u, Joachim},
     title = {Programas de c\'alculo con l\'ogica multivaluada.},
     journal = {Mathware & soft computing},
     pages = {129-153},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MSC_1997_1997_1_a7/}
}