@Misc{BVMC:688034, author = {Clavius, Christoph}, title = {Christophori Clauii ... Epitome arithmeticae practicae nunc denuo ab ipso auctore recognita}, url = {https://www.cervantesvirtual.com/obra/christophori-clauii--epitome-arithmeticae-practicae-nunc-denuo-ab-ipso-auctore-recognita} }