@Book{BVMC:1201861, author = {Lax, Gaspar}, title = {Arithmetica speculatiua magistri Gasparis Lax Aragonensis de Sarnyena duodecim libris demonstrata}, url = {https://www.cervantesvirtual.com/obra/arithmetica-speculatiua-magistri-gasparis-lax-aragonensis-de-sarnyena-duodecim-libris-demonstrata-1201861} }