@article{MET_1993__40_2_176462,
     author = {Sanpei Kageyama and Hiroshi Setoya},
     title = {Bounds on the {Efficiency} of the {Residual} {Design} of {Extended} {BIB} {Designs.}},
     journal = {Metrika},
     pages = {191--201},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {1993},
     zbl = {0770.62058},
     url = {http://geodesic.mathdoc.fr/item/MET_1993__40_2_176462/}
}