 Complete the following phrase:  Jehle graduated in 1930 from the Technische Hochschule Stuttgart with a degree in engineering and in 1933 from the Technische Hochschule Berlin with an engineering doctorate in textile manufacture. For the academic year 19331934 he studied theoretical physics at the University of Cambridge. In 193536 he worked for the Jahrbuch über die Fortschritte der Mathematik. As a convinced pacifist associated with the Quakers and a political dissident, he left Germany. In 193738 he was a research assistant at the University College in Southampton and from 1938 to 1940 at the Free University of Brussels. After internment at 