Bing found the following results
GNU General Public License - Wikipedia
The GNU General Public License v3.0 - GNU Project - Free …
Frequently Asked Questions about the GNU Licenses
GNU General Public License (GNU GPL or GPL) - TechTarget
What is GPL? (GPL, GNU and Open Source Explained Simply)
Licenses - GNU Project - Free Software Foundation
GNU General Public Licenses – Open Source Initiative
GNU license - Wikipedia
Definition of GNU General Public License | PCMag
GNU General Public License | GPLv3 explained | Snyk