Wasim Ul-Haq, Javed Iqbal. r-Preinvex Functions. J. Applied Mathematics, 2013, 2013. [doi]
@article{Ul-HaqI13,
title = {r-Preinvex Functions},
author = {Wasim Ul-Haq and Javed Iqbal},
year = {2013},
doi = {10.1155/2013/126457},
url = {http://dx.doi.org/10.1155/2013/126457},
researchr = {https://researchr.org/publication/Ul-HaqI13},
cites = {0},
citedby = {0},
journal = {J. Applied Mathematics},
volume = {2013},
}