Observed names: H . Ullrich, H. -J. Ullrich, H. J. Ullrich, H. Ullrich, H. ‐J. Ullrich, H.-J. Ullrich, H.J. Ullrich, H.J. Ullrich,, H.‐J. ULLRICH, Ullrich, H.
1994 · H.-J. Ullrich, M. Schlaubitz, et al. · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 24
1995 · Ch. Schetelich, S. Weber, et al. · Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms · 13