@article{PMFA_1966_11_3_a0,
     author = {Marek, Ivo},
     title = {Matice s kladn\'ymi prvky a kriti\v{c}nost jadern\'eho reaktoru},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {121--134},
     year = {1966},
     volume = {11},
     number = {3},
     zbl = {0204.43003},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1966_11_3_a0/}
}