@misc{AV_1948_8_1_a11,
     title = {Zpr\'avy},
     journal = {Aktu\'arsk\'e v\v{e}dy},
     pages = {47--48},
     year = {1948},
     volume = {8},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/AV_1948_8_1_a11/}
}