In the 2017 special issue Concentration Camp Buchenwald Weimar April 1945 by Verlag Rockstuhl, Möller was able to prove scientifically who liberated the Buchenwald concentration camp based on American documents that contradicted previous findings; that units of the 4th US Armored Division had reached Buchenwald before the 6th US Armored Division, and thus triggered all other events that led to the final liberation of the Buchenwald concentration camp.Ankunft der Patrouille von Captain Frederic Keffer (Keffer-Patrouille) 11 April 1945 in Buchenwald, retrieved 9 January 2018.
