@misc{SAD_1976__1_1_79_0,
     title = {Exercice},
     journal = {Statistique et analyse des donn\'ees},
     pages = {79--79},
     publisher = {Association pour la statistique et ses illustrations},
     volume = {1},
     number = {1},
     year = {1976},
     language = {fr},
     url = {http://www.numdam.org/item/SAD_1976__1_1_79_0/}
}