@article{AV_1948_8_4_a3,
     author = {Kalivoda, V.},
     title = {Social insurance in {Czechoslovakia}},
     journal = {Aktu\'arsk\'e v\v{e}dy},
     pages = {147--151},
     year = {1948},
     volume = {8},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AV_1948_8_4_a3/}
}