Category A (Research groups from any national or international university) is open to any research team formed by two or three researchers affiliated to a university, at least one of which should be a University teacher.
Category B (graduate and postgraduate students) is open to any person who is affiliated in any way to a national or international university, either because they are students at one of its Faculties or because they are still currently participating in a training or scholarship program, doctorate program or any other postgraduate studies in that university.