Tkach, Mykola, Ludmila Nefiodova, Pavlo Makoshenets, and Vitaliy Tkachenko. 2025. “Portfolio-Based Development of Military Capabilities: A PM²-PFM–Driven Approach for Defence Organisations”. Social Development & Security 15 (5), 292-307. https://doi.org/10.33445/sds.2025.15.5.23.