@article{MZM_1989_45_6_a3,
     author = {V. S. Grinberg},
     title = {Wielandt-type bounds for primitive mappings of partially ordered sets},
     journal = {Matemati\v{c}eskie zametki},
     pages = {30--35},
     publisher = {mathdoc},
     volume = {45},
     number = {6},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_6_a3/}
}