The journal “Forum Akademickie” has just made available in open access an article by Dr. Natalia Gruenpeter entitled “Cooperation fosters data opening”. The author refers to the experience of the “Disciplinary Open Research Data Repositories” project, in which the University of Warsaw cooperated with the Institute of Philosophy and Sociology of the Polish Academy of Sciences and Adam Mickiewicz University in Poznan. The article also cites statements by QDA staff.