@article{MET_1990__37_3-4_176292,
     author = {R. Mukerjee},
     title = {Optimality of {Balanced} {Designs} for {Minimum} {Norm} {Quadratic} {Unbiased} {Estimation} of {Variance} {Components.}},
     journal = {Metrika},
     pages = {181--188},
     publisher = {mathdoc},
     volume = {37},
     number = {3-4},
     year = {1990},
     url = {http://geodesic.mathdoc.fr/item/MET_1990__37_3-4_176292/}
}