@article{MET_1981__28_175812,
     author = {A.C. Dallas},
     title = {A {Characterization} using the {Conditional} {Variance.}},
     journal = {Metrika},
     pages = {151--154},
     publisher = {mathdoc},
     volume = {28},
     year = {1981},
     zbl = {0472.62017},
     url = {http://geodesic.mathdoc.fr/item/MET_1981__28_175812/}
}