El Kehal, K., Ennagoura, D., El Fahssi, K., Bossoufi, B., El Far, M. and Bennani, M.T. 2026. Data Sampling Frequency Effects on Risk-Adjusted Cryptocurrency Portfolio Construction. Engineering, Technology & Applied Science Research. 16, 2 (Apr. 2026), 34264–34269. DOI:https://doi.org/10.48084/etasr.17668.