Willinger, M. G. (2016). The Need for UHV TEM for In-Situ Studies of Heterogeneous Catalysts. Talk presented at Workshop on Scientific Directions for Future Transmission Electron Microscopy, Ernst Ruska-Centre (ER-C) for Microscopy and Spectroscopy with Electrons. Jülich, Germany. 2016-10-24 - 2016-10-26.