@article{KYB_1999_35_2_a3,
     author = {Kramosil, Ivan},
     title = {Probabilistic propositional calculus with doubled nonstandard semantics},
     journal = {Kybernetika},
     pages = {195--207},
     year = {1999},
     volume = {35},
     number = {2},
     mrnumber = {1690945},
     zbl = {1274.68535},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1999_35_2_a3/}
}