Glenn Axelrod ,M.S. on Twitter: "CIDR notation is a compact representation of an #IP address and its associated #routing prefix. Its goal was to reduce the expansion of routing tables on routers
Classless Inter-Domain Routing Information
IP Addressing In Azure | Understanding CIDR And Subnet Mask Representation - HTMD Blog #2
networking - CIDR for Dummies - Server Fault
Understanding CIDR Ranges and dividing networks - YouTube
Understanding IP Addressing and CIDR Charts — RIPE Network Coordination Centre
The TCP/IP Guide - IP "Supernetting": Classless Inter-Domain Routing (CIDR) Hierarchical Addressing and Notation
Linux: IP Subnet (CIDR) Calculator That Will Help You With Network Settings - nixCraft