Mean inner potential measurement by correlated EFTEM and phase-shifting holography Ulrich Ross, Christoph Flathmann, Jonas Lindner, Tobias Meyer, Andreas Beyer, Jürgen Belz, Kerstin Volz, Christian Jooss and Michael Seibt BIO Web Conf., 129 (2024) 04049 Published online: 17 October 2024 DOI: 10.1051/bioconf/202412904049