Floyd J. Gould, Jon W. Tolle. Geometry of optimality conditions and constraint qualifications. Math. Program., 2(1):1-18, 1972. [doi]
@article{GouldT72,
title = {Geometry of optimality conditions and constraint qualifications},
author = {Floyd J. Gould and Jon W. Tolle},
year = {1972},
doi = {10.1007/BF01584534},
url = {http://dx.doi.org/10.1007/BF01584534},
researchr = {https://researchr.org/publication/GouldT72},
cites = {0},
citedby = {0},
journal = {Math. Program.},
volume = {2},
number = {1},
pages = {1-18},
}