 Kunyora kuenderera kweiyi ndima - Pakupera kwehondo akavandudza zvidzidzo zvake, achitarisa pane nhoroondo yeEastern Europe zvakateedzana kuJena, Frankfurt am Main neBerlin, kwaakawana PhD yake, aine rondedzero padare uye manejimendi eRussia kubva muzana ramakore rechi15 kusvika rechi17, muna 1924. Akaita Habilitationsschrift yake paUniversity yeHamburg, pasi paRichard Salomon, kubva muna 1926 kusvika muna 1931, uye paUniversity yeFrankfurt kubva muna 1932 kusvika muna 1933, paInternational Relations yeSoviet Union uye neAllied Interventionmunguva yapashure peshanduko yehondo yevagari vemo ya1917-1921. 