@article{MET_1981__28_175808,
     author = {N. Mukhopadhyay},
     title = {Sequential {Approach} to {Simultaneous} {Estimation} of the {Mean} and {Variance.}},
     journal = {Metrika},
     pages = {133--136},
     publisher = {mathdoc},
     volume = {28},
     year = {1981},
     zbl = {0468.62078},
     url = {http://geodesic.mathdoc.fr/item/MET_1981__28_175808/}
}