Hedy Attouch, Hassan Riahi. Stability Results for Ekeland's ε-Variational Principle and Cone Extremal Solutions. Math. Oper. Res., 18(1):173-201, 1993. [doi]
@article{AttouchR93,
title = {Stability Results for Ekeland's ε-Variational Principle and Cone Extremal Solutions},
author = {Hedy Attouch and Hassan Riahi},
year = {1993},
doi = {10.1287/moor.18.1.173},
url = {http://dx.doi.org/10.1287/moor.18.1.173},
researchr = {https://researchr.org/publication/AttouchR93},
cites = {0},
citedby = {0},
journal = {Math. Oper. Res.},
volume = {18},
number = {1},
pages = {173-201},
}