Giovanni Abramo Ciriaco Andrea D'Angelo Flavia Di Costa Measuring and interpreting the differences of the nations' scientific specialization indexes by output and by input. 755-775 2022 3 Quant. Sci. Stud. 3 https://doi.org/10.1162/qss_a_00206 db/journals/qss/qss3.html#AbramoDC22a