Wu, D., & Chen, A. (2011). Spectral inclusion properties of the numerical range in a space with an indefinite metric. Linear algebra and its applications, 435(5), 1131-1136. https://doi.org/10.1016/j.laa.2011.02.053
Chicago Style (17th ed.) CitationWu, Deyu, and Alatancang Chen. "Spectral Inclusion Properties of the Numerical Range in a Space with an Indefinite Metric." Linear Algebra and Its Applications 435, no. 5 (2011): 1131-1136. https://doi.org/10.1016/j.laa.2011.02.053.
MLA (9th ed.) CitationWu, Deyu, and Alatancang Chen. "Spectral Inclusion Properties of the Numerical Range in a Space with an Indefinite Metric." Linear Algebra and Its Applications, vol. 435, no. 5, 2011, pp. 1131-1136, https://doi.org/10.1016/j.laa.2011.02.053.
Warning: These citations may not always be 100% accurate.