1. Problem Book: "Sbornik zadach po differentsialnym uravneniiam"
: Focuses on existence and uniqueness theorems, linear systems, and stability, with clear examples of how to apply theory to solving problems. Where to download : CSC-KNU Archive (2007 corrected edition, 240 pages). 3. Advanced Monograph (In English and Russian) filippov differentsialnye uravneniia skachat pdf
2. Textbook: "Vvedenie v teoriiu differentsialnykh uravnenii" filippov differentsialnye uravneniia skachat pdf