@article{MET_1986__33_176066,
     author = {N. Mukhopadhyay and G. Vik},
     title = {Sequential {Simultaneous} {Estimation} of the {Mean} and {Variance:} {The} {Rate} of {Convergence.}},
     journal = {Metrika},
     pages = {291--297},
     publisher = {mathdoc},
     volume = {33},
     year = {1986},
     zbl = {0606.62089},
     url = {http://geodesic.mathdoc.fr/item/MET_1986__33_176066/}
}