@misc{indiciae7d23c8b13ca9,
  title = {Systems reliability subject to multiple nonlinear constraints.},
  author = {Balbale, S. A. and Fan, L.-T. and Hwang, C.-L. and Tillman, F. A.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680063424},
  note = {Source identifier: 19680063424}
}