Findings:

• characterization
• Kuratowski's Forbidden Subgraph Characterization of Planarity
• materials characterization
• Illegitimate
• Illegitimate child
• Illegitimate Ed (user)
• A Call to Resist Illegitimate Authority

If you Log in you could create a "illegitimate characterization" node. If you don't already have an account, you can register here.