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