@article{DAN_1967_176_5_a9,
     author = {I. Marek},
     title = {The spectral radius of indecomposable positive operators},
     journal = {Doklady Akademii Nauk},
     pages = {1009--1011},
     year = {1967},
     volume = {176},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_176_5_a9/}
}