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ON SEQUENTIAL ESTIMATION OF THE DIFFERENCE OF MEANS
Mukhopadhyay, Nitis, (1994)
ON SOME ASPECTS OF RANKED SET SAMPLING FOR ESTIMATION OF NORMAL AND EXPONENTIAL PARAMETERS
Sinha, Bimal K., (1996)
Simple proofs of two results on convolutions of unimodal distributions
Purkayastha, Sumitra, (1998)