@article{MET_1974__21_175621,
     author = {G. Pflug},
     title = {Asymptotic {Theory} of rank tests for independence  -  {RUYMGAART,} {F.H.}},
     journal = {Metrika},
     pages = {51--52},
     publisher = {mathdoc},
     volume = {21},
     year = {1974},
     url = {http://geodesic.mathdoc.fr/item/MET_1974__21_175621/}
}