Authors Geombinatorics Quarterly Jaraoslaw Wawrzycki Article Title – Multiplication in Newton’s Principia and Jordan-Banach Algebras I Vol Issue – Vol XXIII (2) 2013 Pages – 65 Article Title – Multiplication in Newton’s Principia and Jordan-Banach Algebras II Vol Issue – Vol XXIII (3) 2014 Pages – 127