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WikiPedia: Astronomia_nova http://www.e-rara.ch/zut/content/titleinfo/162514 http://www.uni-mannheim.de/mateo/camenaref/siglala... http://catalogue.bnf.fr/ark:/12148/cb14418085r http://data.bnf.fr/ark:/12148/cb14418085r http://www.idref.fr/069823464 http://d-nb.info/gnd/4192171-9 //www.worldcat.org/oclc/168613439 https://books.google.com/books?id=ZLlCAAAAcAAJ&pg=... https://books.google.com/books?id=rEkLAAAAIAAJ&pg=... https://books.google.com/books?id=wa2SE_6ZL7YC&pg=...