@article{PMFA_1993_38_4_a1,
     author = {Zajac, \v{S}tefan},
     title = {150 let {Dopplerova} principu},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {192--193},
     year = {1993},
     volume = {38},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1993_38_4_a1/}
}