Ojanpera, S., Graham, M., Straumann, R., & De Sabbata, S. (2016). Measuring the contours of the global knowledge economy with a digital index. Oxford Department of International Development, University of Oxford.

Ojanpera, S., M. Graham, R. Straumann, and S. De Sabbata. Measuring the Contours of the Global Knowledge Economy with a Digital Index. Oxford Department of International Development, University of Oxford, 2016.

Ojanpera, S., et al. Measuring the Contours of the Global Knowledge Economy with a Digital Index. Oxford Department of International Development, University of Oxford, 2016.