3-5.4.2 Configuring and Verifying EIGRP and Summary Routes - Cisco Fever!
EIGRP summarization in DMVPN Phase 2 networks « ipSpace.net blog
CCNP – Advanced Routing Ch. 8 Route Optimization – Part II Originally created by Rick Graziani with modifications and additions by Prof. Yousif. - ppt download
Configure Summary and Floating Static Routes (2.4) > Cisco Networking Academy's Introduction to Static Routing | Cisco Press