From 1914 to 1950 he was a professor at the school formerly known as Rets- og Statsvidenskabelige Fakultet (Jurisprudence and Political Science Faculty) (today known as the Juridiske Fakultet, or Legal Faculty) of the University of Copenhagen.
Fra 1914 til 1950 var han professor i formueret ved Rets- og Statsvidenskabelige Fakultet (i dag Det Juridiske Fakultet) ved Københavns Universitet.