@article{KYB_1989__25_Suppl_a2,
     author = {Vald\'es, Julio J.},
     title = {Partially ordered combining structures and multiple sources of knowledge evidences in rule-based expert systems},
     journal = {Kybernetika},
     pages = {15--19},
     publisher = {mathdoc},
     volume = {25},
     number = {Suppl},
     year = {1989},
     zbl = {0665.68076},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1989__25_Suppl_a2/}
}