@article{MET_1981__28_175814,
     author = {P.K. Sen and Y. Tsong},
     title = {An {Invariance} {Principle} for {Progressively} {Truncated} {Likelihood}  {Ratio} {Statistics.}},
     journal = {Metrika},
     pages = {165--178},
     publisher = {mathdoc},
     volume = {28},
     year = {1981},
     zbl = {0485.62112},
     url = {http://geodesic.mathdoc.fr/item/MET_1981__28_175814/}
}