Shyshatskyi, A., Zhuravskyi, Y., Plekhova, G., Shostak, I., Odarushchenko, E., Feoktystova, O., Shostak, S., Protas, N., Shaposhnikova, O., & Hnatiuk, N. (2026). Development of a scientific and methodological apparatus for ensuring the functional reliability of special-purpose information systems. Eastern-European Journal of Enterprise Technologies, 1(4 (139), 6–18. https://doi.org/10.15587/1729-4061.2026.349975