Handbook of Ordinary Differential Equations: Exact Solutions, Methods, and Problems, 3rd Edition by Andrei D. Polyani, Valentin F. Zaitsev 2017 | ISBN: 1466569379 | English | 1496 pages | PDF | 12 MB
Andrei D. Polyanin, Vladimir E. Nazaikinskii, "Handbook of Linear Partial Differential Equations for Engineers and Scientists, 2nd Edition 2nd Edition" 2016 | ISBN-10: 146658145X | 1643 pages | PDF | 29 MB