Germany - "The development of transport costs for German and American Bitumous Coal and Effects on the Competition in German Republic" by K. O. Hordemann

Germany - "The development of transport costs for German and American Bitumous Coal and Effects on the Competition in German Republic" by K. O. Hordemann, Box: 14, Folder: 32. Charles Heller papers, RH MS 314. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/490222 Accessed December 25, 2025.