Justi, Johann Heinrich Gottlob vonEuler, Leonhard, adressaat2008-01-242008-01-241748-02-11F 3,Mrg CCCLIVa,Ep.phil.II,l.192-193http://hdl.handle.net/10062/5429LetterBriefKiriKiri L. Euler'ile, Sangerhausen