1. Arnold BC, Balakrishnan N, Nagaraja HN (1992) A first course in order statistics. J. Wiley, New York
2. Balakrishnan N, Balasubramanian K (1993) Equivalence of Hartley-David-Gumbel and Papathanasiou bounds and some further remarks. Stat Probab Lett 16: 39–41
3. Boland PJ, Samaniego F (2004) The signature of a coherent system and its applications in reliability. In: Soyer R, Mazzuchi T, Singpurwalla N (eds) Mathematical reliability: an expository perspective, international series in operational research and management science. Kluwer, Boston, pp 1–29
4. Castaño-Martinez A, López-Blázquez F, Salamanca-Miño B (2007) Maximal correlation between order statistics. In: Ahsanullah M, Raqab MZ (eds) Recent developments in ordered random variables. Nova Sci. Publ., New York, pp 55–68
5. Jasiński K, Navarro J, Rychlik T (2009) Bounds on variances of lifetimes of coherent and mixed systems. J Appl Probab 46: 894–908