UAB Digital Repository

Institutional Repository of Universitat Autònoma de Barcelona. The UAB is a leading university providing quality teaching in a wide variety of courses that meet the needs of society and are adapted to the new models of the Europe of Knowledge.

Source: https://www.uab.cat/

Spiral

Institutional Repository if Imperial College London, holds over 70,000 full-text items.

Forrás: https://spiral.imperial.ac.uk/about.jsp

SHAREOK Repository

SHAREOK is the joint institutional repository for the University of Oklahoma Libraries (OU), Oklahoma State University Libraries (OSU), and the University of Central Oklahoma Max Chambers Library (UCO). It serves as the home for the intellectual output of those institutions, such as: digital theses and dissertations, faculty publications, open access publications, open educational resources, institution-specific content and much more.

Source: https://shareok.org/

SciELO - Scientific Electronic Library Online

SciELO, Scientific Electronic Library Online, is a model for cooperative electronic publishing of scientific journals on the Internet. Especially conceived to meet the scientific communication needs of developing countries -- particularly Latin America and the Caribbean countries -- SciELO provides an efficient way to assure universal visibility and accessibility to scientific literature and contributes to overcoming the phenomena known as "lost science". 

Source: http://www.dlib.org/dlib/october00/10inbrief.html#PACKER