Doetsch had collaborated with a number of Jewish mathematicians; his doctoral supervisor was Edmund Landau and his collaborator on the Laplace transform was Felix Bernstein, both Jewish mathematicians.
Doetsch had collaborated sa isang bilang ng mga Hudyo mathematicians; kanyang doktor superbisor ay Edmund Landau at ang kanyang mga tagatulong sa Laplace-anyo ay Felix Bernstein, parehong mga Hudyo mathematicians.