@article{IVM_2000_1_a8,
     author = {L. F. Rakhmatullina},
     title = {An upper bound for the spectral radius of an isotone operator},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {56--65},
     publisher = {mathdoc},
     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2000_1_a8/}
}