@article{MET_1974__21_175617,
     author = {H. STENGER},
     title = {Mehrstufige {Stichprobenverfahren.}},
     journal = {Metrika},
     pages = {7--18},
     publisher = {mathdoc},
     volume = {21},
     year = {1974},
     url = {http://geodesic.mathdoc.fr/item/MET_1974__21_175617/}
}