1989 - young people and social change after the fall of the Berlin WallCarmen Leccardi, Carles Feixa Pàmpols, Siyka Kovacheva, Reiter, Herwig (Social sciences researcher), Tatjana Sekulić · First published 2012Open the Tome
Keys to youth participation in eastern EuropeSiyka Kovacheva, Council of Europe. Directorate of Youth and Sport · First published 2000Open the Tome
