@book{6891, author = {UniĆ³n Internacional de Telecomunicaciones}, title = {Measuring digital development }, publisher = {ITU Publications,}, year = {2021}, address = {Geneva :}, url = {https://www.itu.int/en/ITU-D/Statistics/Documents/facts/FactsFigures2021.pdf}, Remainder of title = {: Facts and figures 2021} }