@misc{AV_1936_6_3_a5,
     title = {Zpr\'avy},
     journal = {Aktu\'arsk\'e v\v{e}dy},
     pages = {137--141},
     year = {1936},
     volume = {6},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/AV_1936_6_3_a5/}
}