Home › Authors › Dorin Andrica 👤 Dorin Andrica 6 books Books by Dorin Andrica Twenty-One Articles for Math C Twenty-One Articles for Math Competitions and Enrichment 2023 Recurrent Sequences 2021 Geometry of Remarkable Element Geometry of Remarkable Elements 2016 Complex Numbers from A to ... Z 2014 An Introduction to Diophantine Equations 2011 Quadratic Diophantine Equations 2009