Tignol, Jean-Pierre _ Galois theory of algebraic equations _ - 2nd ed. - Singapore World Scientific 2021 - xvi, 308 p. PB 23 cm ISBN: 978000990112 Subjects--Personal Names: _ Subjects--Uniform Titles: Quadratic Equations, Babylonian algebra, Greek algeba, .Arabic algebra Dewey Class. No.: 512.7 / TIG