@article{DAN_1977_234_4_a3, author = {N. N. Katerinochkina}, title = {Search for a maximal upper zero for a class of monotone functions in $k$-valued logic}, journal = {Doklady Akademii Nauk}, pages = {746--749}, publisher = {mathdoc}, volume = {234}, number = {4}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1977_234_4_a3/} }