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\bibitem{Cao_etal2009} Cao, Q., Yoon, S. F., Tong, C. Z., Ngo, C. Y., Liu, C. Y., Wang, R., et al. (2009). Two-state competition in 1.3~μm multilayer InAs/InGaAs quantum dot lasers. \textit{Appl. Phys. Lett.}, \textit{95}(19), 3.

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