Alexandre Megretski. Necessary and sufficient conditions of stability: a multiloop generalization of the circle criterion. IEEE Trans. Automat. Contr., 38(5):753-756, 1993. [doi]
@article{Megretski93,
title = {Necessary and sufficient conditions of stability: a multiloop generalization of the circle criterion},
author = {Alexandre Megretski},
year = {1993},
doi = {10.1109/9.277240},
url = {https://doi.org/10.1109/9.277240},
researchr = {https://researchr.org/publication/Megretski93},
cites = {0},
citedby = {0},
journal = {IEEE Trans. Automat. Contr.},
volume = {38},
number = {5},
pages = {753-756},
}