<?xml version="1.0"?>
<response><item key="0"><nothing>Matthias Amthor, Timothy C. H. Liew, Christian Metzger, Sebastian Brodbeck, Lukas Worschech, Martin Kamp, Ivan Shelykh, Alexey V. Kavokin, Christian Schneider, Sven H&#xF6;fling, "Optical Bistability in Electrically Driven Polariton Condensates", CLEO: 2015, 2015, [DOI: 10.1364/cleo_qels.2015.fth4d.5] </nothing></item></response>
