@article{MET_1988__35_3-4_176147,
     author = {S. Bagchi},
     title = {A {Class} of {Non} {Binary} {Unequally} {Replicated} {E-Optimal} {Designs.}},
     journal = {Metrika},
     pages = {1--12},
     publisher = {mathdoc},
     volume = {35},
     number = {3-4},
     year = {1988},
     zbl = {0638.62072},
     url = {http://geodesic.mathdoc.fr/item/MET_1988__35_3-4_176147/}
}