Career
In the 1920s he was a coworker of Robert Gragger (1887-1926) at the Hungarian Institute of the Friedrich-Wilhelms-Universität in Berlin. During World World War II he was head of the German-Hungarian Society. He founded the Finno-Ugric seminar at the University of Göttingen in 1947.
He wrote over 19 books dealing with various aspects of Hungarian literature and language, including titles published in German and Hungarian.