Roberts, C, Stott, C and McNulty, T (2024). Keppel - Biometrics Solutions for ODK Ecosystem Tools. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00004433.

Roberts, C, Stott, C, Lal, S, Marks, M, Shawe-Taylor, M and Chaudhry, Z (2022). Biometric linkage of longitudinally collected electronic case report forms and confirmation of subject identity: An open framework for Open Data Kit (ODK) and related tools. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00003115.