His own research focussed on Middle High German , Old High German , Germanic folklore and religion .
Helm took over editorship of the Althochdeutsche Grammatik , Althochdeutsches Lesebuch and Gotische Grammatik from Wilhelm Braune , all standard works in Germanic studies .
Helm 's own research focussed on Middle High German , Old High German Germanic Germanic folklore and religion .
Helm took over editorship of the Althochdeutsche Grammatik , Althochdeutsches Lesebuch and Gotische Grammatik from Wilhelm Braune , all standard works in Germanic studies .