One Star to Tag Them All (OSTTA) - I. Radial velocities and chemical abundances for 20 poorly studied open clusters
R. Carrera, L. Casamiquela, A. Bragaglia, E. Carretta, J. Carbajo-Hijarrubia, C. Jordi, J. Alonso-Santiago, L. Balaguer-Nuñez, M. Baratella, V. D’Orazi, S. Lucatello and C. Soubiran
