@article{PMFA_1958_3_4_a12,
     author = {Grigorjan, A. T.},
     title = {Sto let od narozen{\'\i} {K.} {E.} {Ciolkovsk\'eho}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {476--479},
     year = {1958},
     volume = {3},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1958_3_4_a12/}
}