IntestazioneBeck, Christian Usata in: National Library of Russia, St. Petersburg
VarianteBeck, Ch.
Bekk, Christianus
Fonti esterne
Fonti a stampa... Disputatio physica De visu, quam ... sub praesidio M. Christophori Hartknochs ... An. M.DC.LXXXV. d. 29. Novembr. defendet Fridericus Sauer, Passenheim. Prussus, auctor & respondens, [1685]