@article{JSFS_1913__54__254_0,
     author = {Trap, Cordt},
     title = {Les juifs russes \`a {Copenhague}},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {254--262},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {54},
     year = {1913},
     language = {fr},
     url = {http://www.numdam.org/item/JSFS_1913__54__254_0/}
}