@misc{indiciae583310f09d63,
  title = {Complementary variational principle and duality in mathematical programming.},
  author = {Chan, W. L. and Leininger, G. G. and Farison, J. B.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730055494},
  note = {Source identifier: 19730055494}
}