
Green, Gold, Gratis and Libre Open Access – brief overview for beginners
The scientific community has adopted a division of Open Access into two main types: Green and Gold. Almost everyone who has had contact with Open Access knows what lies behind these two terms. But apart from these, there are also other names, such as Hybrid OA, Gratis OA and Libre OA. What is hidden behind these terms? Below you will find a brief explanation, and links that should help you navigate better through the maze of definitions.