A Questionnaire Model for Cybersecurity Maturity Assessment of Critical Infrastructures. - Bilge Yigit Ozkan; Marco Spruit (IOSec@RAID, 2018)

Addressing SME Characteristics for Designing Information Security Maturity Models. - Bilge Yigit Ozkan; Marco Spruit (HAISA, 2020)

Assessing and Improving Cybersecurity Maturity for SMEs: Standardization aspects. - Bilge Yigit Ozkan; Marco Spruit (CoRR, 2020)

SYMBALS: A Systematic Review Methodology Blending Active Learning and Snowballing. - Max van Haastrecht; Injy Sarhan; Bilge Yigit Ozkan; Matthieu J. S. Brinkhuis; Marco Spruit (Frontiers Res. Metrics Anal., 2021)

The Cybersecurity Focus Area Maturity (CYSFAM) Model. - Bilge Yigit Ozkan; Sonny van Lingen; Marco Spruit (J. Cybersecur. Priv., 2021)

Adaptable Security Maturity Assessment and Standardization for Digital SMEs. - Bilge Yigit Ozkan; Marco Spruit (J. Comput. Inf. Syst., 2023)