@article{JSFS_1940__81__39_0,
     author = {Amy, Lucien},
     title = {\'Etude statistique de l{\textquoteright}expression $\frac{p_1}{q_1}= \frac{p_2}{q_2}= \dots = \frac{p_i}{q_i}= \dots = {c^{\rm {te}}}$. {Premi\`ere} application \`a l{\textquoteright}\'etude de la fr\'equence des formules digitales},
     journal = {Journal de la Soci\'et\'e de statistique de Paris},
     pages = {39--47},
     publisher = {Soci\'et\'e de statistique de Paris},
     volume = {81},
     year = {1940},
     language = {fr},
     url = {http://www.numdam.org/item/JSFS_1940__81__39_0/}
}