Buck, Friedrich JohannEuler, Leonhard, adressaat2008-01-242008-01-241751-05-31F 3,Mrg CCCLIVa,Ep.phil.II,l.100-101http://hdl.handle.net/10062/5397LetterBriefKiriKiri Leonhard Eulerile / Frid. Joh. Buck, Königsberg