@article{MET_1985__32_175987,
     author = {E. Sonnemann},
     title = {U-Optimum {Row-Columns} {Designs} for the {Comparison} of {Two} {Treatments.}},
     journal = {Metrika},
     pages = {57--63},
     publisher = {mathdoc},
     volume = {32},
     year = {1985},
     zbl = {0558.62069},
     url = {http://geodesic.mathdoc.fr/item/MET_1985__32_175987/}
}