@misc{AV_1933_4_4_a4,
     title = {Les {Conf\'erences} du prof. {Ren\'e} {Risser} \`a {Prague}},
     journal = {Aktu\'arsk\'e v\v{e}dy},
     pages = {174--180},
     year = {1933},
     volume = {4},
     number = {4},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/AV_1933_4_4_a4/}
}