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<response><item key="0"><nothing>A. Rahimi-Iman, C. Schneider, N. Y. Kim, J. Fischer, M. Amthor, L. Worschech, V. D. Kulakovskii, Ivan Shelykh, M. Kamp, S. Reitzenstein, A. Forchel, Y. Yamamoto, S. H&#xF6;fling, "An electrically driven polariton laser", Asia Communications and Photonics Conference 2013, 2013, [DOI: 10.1364/acpc.2013.aw3b.6] </nothing></item></response>
