@article{MET_1963__7_175220,
     author = {I.M. Chakravarti},
     title = {Orthogonal and {Partially} {Balanced} {Arrays} and their {Application} in {Design} of {Experiment.}},
     journal = {Metrika},
     pages = {231--242},
     publisher = {mathdoc},
     volume = {7},
     year = {1963},
     zbl = {0123.36604},
     url = {http://geodesic.mathdoc.fr/item/MET_1963__7_175220/}
}