This icon is a part of a collection of Google Scholar flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality.
Idea of Google Scholar Icon by Tim Nguyen
We've received the idea on October 20, 2012 and created the icons on June 17, 2013
google services : http://www.google.com/intl/en/about/products/ + google sketchup + google earth