Browse Items (1 total) Description is exactly "SPEAR videos of Helmut Wiedemann lectures. " Browse All Search Items Sort by: Title Creator Date Added 2021-003 SPEAR Videos SPEAR videos of Helmut Wiedemann lectures. Featured Item SLAC002 Burton Richter Papers, 1952-1999 The Richter papers document Burton Richter’s role in modern physics as a scientist, administrator, and advisor. The collection includes personal and…