@article{DM_1992_4_3_a9,
     author = {\`E. \`E. Gasanov},
     title = {A~lower bound on the complexity of information networks for a~class of information search problems},
     journal = {Diskretnaya Matematika},
     pages = {118--127},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1992_4_3_a9/}
}