Is it possible to use google-maps-icons in a project?

Question

Icons

Is it possible to use google-maps-icons in a closed source project?

They have a
Code license there: GNU General Public License v3
Content license: Creative Commons 3.0 BY-SA

What does GPL mean for code - I understand, but GPL and Creative Commons for icons - not really.

If so, what should be included on the site?

Thank you!

Answer 1

Icons exclusively under CC BY-SA, for content.
BY-SA says: This license lets others remix, tweak, and build upon your work even for commercial purposes, as long as they credit you and license their new creations under the identical terms.
See creativecommons.org/licenses/by-sa/3.0/
New creations in this case include, for example, adding something to any of the icons, or new icons and other art used in conjunction with these.

Answer 2

As far as I know, Creative Commons allows you to use materials with credits to their authors. So it's possible. Please list the authors only.

Answer 3

code.google.com/p/google-maps-icons/wiki/License
In 4.3 there is a list of things to specify.
Please credit: Maps Icons Collection code.google.com/p/google-maps-icons/
I think that's enough