Jyun-Horng Fu. Liapunov functions and stability criteria for nonlinear systems with multiple critical eigenvalues. MCSS, 7(3):255-278, 1994. [doi]
@article{Fu94-1, title = {Liapunov functions and stability criteria for nonlinear systems with multiple critical eigenvalues}, author = {Jyun-Horng Fu}, year = {1994}, doi = {10.1007/BF01212272}, url = {http://dx.doi.org/10.1007/BF01212272}, researchr = {https://researchr.org/publication/Fu94-1}, cites = {0}, citedby = {0}, journal = {MCSS}, volume = {7}, number = {3}, pages = {255-278}, }