@article{MET_1972__18_175513,
     author = {P.K. Sen},
     title = {A {Further} {Note} on the {Asymptotic} {Efficiency} of {Friedman's} {xr2-Test.}},
     journal = {Metrika},
     pages = {234--237},
     publisher = {mathdoc},
     volume = {18},
     year = {1972},
     url = {http://geodesic.mathdoc.fr/item/MET_1972__18_175513/}
}