Robuta

https://collections.nlm.nih.gov/catalog/nlm:nlmuid-101415499-img Hieronym. Frigimelica Robertus, Pat. Comes et Eqves, Prim. Theoricae Prof - Digital Collections -... https://heritage.tudelft.nl/en/objects/tr-514425 Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra... sphaera mundi georgius novae regiomontanus https://books.google.fr/books?vid=BML37001103720426 Sphaera mundi. G. Purbachius, Theoricae novae planetarum. Regiomontanus ... - Johannes de Sacro... sphaera mundi g