“Optical Filler of Variable Density”, Box: 50, Folder: F340. Karl Wolfgang Böer papers, MSS 0483. University of Delaware Library Special Collections.
Cite Item Description
“Optical Filler of Variable Density”, Box: 50, Folder: F340. Karl Wolfgang Böer papers, MSS 0483. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/90090 Accessed July 26, 2024.
