Hossein Mohebi, Alexander Rubinov. Metric Projection onto a Closed Set: Necessary and Sufficient Conditions for the Global Minimum. Math. Oper. Res., 31(1):124-132, 2006. [doi]
@article{MohebiR06,
title = {Metric Projection onto a Closed Set: Necessary and Sufficient Conditions for the Global Minimum},
author = {Hossein Mohebi and Alexander Rubinov},
year = {2006},
doi = {10.1287/moor.1050.0173},
url = {http://dx.doi.org/10.1287/moor.1050.0173},
researchr = {https://researchr.org/publication/MohebiR06},
cites = {0},
citedby = {0},
journal = {Math. Oper. Res.},
volume = {31},
number = {1},
pages = {124-132},
}