Eduardo D. Sontag. Passivity gains and the secant condition for stability. Systems & Control Letters, 55(3):177-183, 2006. [doi]
@article{Sontag06,
title = {Passivity gains and the secant condition for stability},
author = {Eduardo D. Sontag},
year = {2006},
doi = {10.1016/j.sysconle.2005.06.010},
url = {http://dx.doi.org/10.1016/j.sysconle.2005.06.010},
researchr = {https://researchr.org/publication/Sontag06},
cites = {0},
citedby = {0},
journal = {Systems & Control Letters},
volume = {55},
number = {3},
pages = {177-183},
}