@article{ea4b29d4641c4bfdadf813789f49214a,
title = "Necessary optimality conditions with a modified subdifferential",
keywords = "generalized invex condition, nonconvex nonsmooth necessary optimality condition, t-generalized directional derivate, T-subdiflerential, T-subgradient, x-extended directional dcrivate",
author = "Xiaoqi Yang and Craven, {B. D.}",
year = "1991",
month = jan,
day = "1",
doi = "10.1080/02331939108843677",
language = "English",
volume = "22",
pages = "387--400",
journal = "Optimization",
issn = "0233-1934",
publisher = "Taylor and Francis Ltd.",
number = "3",
}