Morgenstern, Johann Karl SimonLa Trobe, Johann Friedrich Bonneval, adressaat2007-10-032007-10-031810F 3,Mrg CCCXLII,kd.6,l.161-162http://hdl.handle.net/10062/3945KiriLetterBriefKiri Johann Friedrich Bonneval La Trobe'ile, Dorpat