61 books • 1 series
Theory of Differential Equations Volume 2; (Vol. II-III) Ordinary Equations, Not Linear. 1900
Theory of Differential Equations Volume 5; (Vol. I) Exact Equations and Pfaff's Problem. 1890
Theory of Differential Equations Volume 6; (Vol. I) Exact Equations and Pfaff's Problem. 1890
Theory of Differential Equations Volume 4; (Vol. V-VI) Partial Differential Equations. 1906
Theory of Differential Equations Volume 1; (Vol. I) Exact Equations and Pfaff's Problem. 1890