1. Characterization Problems Associated with the Exponential Distribution;Azlarov,1986
2. Bivariate failure rate;Basu;J. Amer. Statist. Assoc.,1971
3. Multivariate exponential distributions and their applications in reliability;Basu,1988
4. Continuous multivariate exponential extensions;Block,1975
5. A continuous bivariate exponential extension;Block;J. Amer. Statist. Assoc.,1974