Samuilovas, Andrius, and Rasa Ušpalytė-Vitkūnienė. “E Ticketing at Public Transport: Solutions, Advantages and Perspectives in Lithuania”. Mokslas – Lietuvos ateitis / Science – Future of Lithuania 15 (August 17, 2023). Accessed May 18, 2024. https://journals.vilniustech.lt/index.php/MLA/article/view/19429.