Tamal K. Dey, Rephael Wenger. Stability of Critical Points with Interval Persistence. Discrete & Computational Geometry, 38(3):479-512, 2007. [doi]
@article{DeyW07,
title = {Stability of Critical Points with Interval Persistence},
author = {Tamal K. Dey and Rephael Wenger},
year = {2007},
doi = {10.1007/s00454-007-1356-1},
url = {http://dx.doi.org/10.1007/s00454-007-1356-1},
researchr = {https://researchr.org/publication/DeyW07},
cites = {0},
citedby = {0},
journal = {Discrete & Computational Geometry},
volume = {38},
number = {3},
pages = {479-512},
}