@article{An2008,
author = {An, Z.W. and Huang, H.Z. and Liu, Y.},
title= {A discrete stress–strength interference model based on universal generating function},
year = {2008},
doi = {10.1016/j.ress.2007.09.011},
volume = {93},
number = {10},
pages = {1485--1490},
}