S. Ilker Birbil, J. B. G. Frenk, G. J. Still. An elementary proof of the Fritz-John and Karush-Kuhn-Tucker conditions in nonlinear programming. European Journal of Operational Research, 180(1):479-484, 2007. [doi]
@article{BirbilFS07,
title = {An elementary proof of the Fritz-John and Karush-Kuhn-Tucker conditions in nonlinear programming},
author = {S. Ilker Birbil and J. B. G. Frenk and G. J. Still},
year = {2007},
doi = {10.1016/j.ejor.2006.04.012},
url = {http://dx.doi.org/10.1016/j.ejor.2006.04.012},
tags = {programming},
researchr = {https://researchr.org/publication/BirbilFS07},
cites = {0},
citedby = {0},
journal = {European Journal of Operational Research},
volume = {180},
number = {1},
pages = {479-484},
}