@misc{indiciae1991ceeac6df,
  title = {Optimization of systems reliability.},
  author = {Fan, L. T. and Hwang, C. L. and Tillman, F. A. and Wang, C. S.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670058587},
  note = {Source identifier: 19670058587}
}