Barcaroli, Guilio, Alessandra Nurra, Sergio Salamone, Monica Scannapieco, Marco Scarnò, and Donato Summa. 2015. “Internet As Data Source in the Istat Survey on ICT in Enterprises”. Austrian Journal of Statistics 44 (2):31-43. https://doi.org/10.17713/ajs.v44i2.53.