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2. Life testing;Epstein;J. Amer. Statist. Assoc.,1953
3. “Sequential life tests in the exponential case,”;Epstein;Ann. Math. Statist.,1955
4. “Statistical Assessment of the Life Characteristic, A Bibliographic Guide”;Buckland,1964
5. Computer methods for estimating Weibull parameters in reliability study;Kao;IRE Trans., PGRQC,1958