Smart eGov Services for Citizenship: Improving Personalized Services. - Stavros Piotopoulos; Evangelos Sakkopoulos (IISA, 2020)

Transforming procedures to web applications using IFML: The new Greek Citizenship Test. - Stavros Piotopoulos; Evangelos Sakkopoulos (IISA, 2021)

On-line enrollment systems for migrants: A case study on the new Greek Certificate of Knowledge Competency for Naturalization. - Stavros Piotopoulos; Evangelos Sakkopoulos (IISA, 2022)