@article{RSA_1955__3_4_45_0,
     author = {Cyffers, B. and Vesserau, A.},
     title = {Mesure et contr\^ole de la dispersion \`a partir de groupes de deux},
     journal = {Revue de Statistique Appliqu\'ee},
     pages = {45--59},
     publisher = {Soci\'et\'e de Statistique de France},
     volume = {3},
     number = {4},
     year = {1955},
     language = {fr},
     url = {http://www.numdam.org/item/RSA_1955__3_4_45_0/}
}