@article{DAN_1975_224_3_a15,
     author = {N. N. Katerinochkina},
     title = {Location of the maximal upper zero of a monotonic logic-algebra function},
     journal = {Doklady Akademii Nauk},
     pages = {557--560},
     year = {1975},
     volume = {224},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_224_3_a15/}
}