@article{UZERU_2002_2_a1,
     author = {H. R. Bolibekyan},
     title = {Three-valued predicate calculi with the symbol of uncertainty},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {44--50},
     publisher = {mathdoc},
     number = {2},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2002_2_a1/}
}