12 “In summer 2010, seven cardboard boxes with lexicographical slips compiled by Dr. GertrudBauer were presented by Professor Peter Nagel (Bonn) to the DDGLC office, which had beenhanded over to him in the early 1990s by the late Professor Alexander Böhlig. The Gertrud-und-Alexander-Böhlig Stiftung funded the scanning and slotting of the slips into a database accord-ing to the hierarchical structure of the original compilation,” http://research.uni-leip-zig.de/ddglc/bauer/BauerIndex.pdf
repetition of what appears on their primary web page in early 2023. the .pdf document doesn't appear to exist anymore (it redirects to https://www.geschkult.fu-berlin.de/en/e/ddglc/index.html