Dmytriiev, A., Leontiev, O. and Naumenko, M. 2024. Possible variants of formalised criteria for the rationality of the tactical, technical and economic outline of the prospective helicopter fleet of the army aviation. Social Development and Security. 14, 2 (Apr. 2024), 25-33. DOI:https://doi.org/10.33445/sds.2024.14.2.3.