Challenges and implications of the WHO’s digital cross-border COVID-19 vaccine passport recognition pilotJackson, Eric B.; Dreyling, Richard; Pappel, Ingrid2021 Eighth International Conference on eDemocracy and eGovernment (ICEDEG) :  Quito, Ecuador, 28-30 July 20212021 / p. 88-94

Cost-efficient network planning for the cross-border Baltic corridor—a studyElgarhy, Osama Mohamed Mostafa; Alam, Mohammad Saad; Tammets, Anet; Roosipuu, Priit; Ancans, Guntis; Saidans, Guntars; Tutovs, Jurijs; Saliņš, Klavs; Verdiņš, A.; Aleksandrovs, M.; Perševics, A.; Zariņš, D.; Uusmaa, Mart; Uhtlik, Ove; Soom, PriitSensors2023 / art. 8111 https://doi.org/10.3390/s23198111