This information has been consolidated and moved to the portal’s page about Best UML Cheatsheets and reference guides . Follow the discussion there
If you need a quick reference guide for the UML notation, check one of the following, IMHO, great UML cheat sheets (in no particular order):
Some are quite old but I still like them and the main elements of the UML notation have not changed during all these years (except for the interpretation of the includes and extends relationships in use case diagrams; you should be careful with this).
Remember that you can find more information on UML resources in the portal’s UML section .