@article{MET_1981__28_175822,
     author = {J. Murdoch},
     title = {Control {Charts.}},
     journal = {Metrika},
     pages = {209--210},
     year = {1981},
     volume = {28},
     url = {http://geodesic.mathdoc.fr/item/MET_1981__28_175822/}
}