Smatayeva А., and Temerbulatova Ж. “Energy Transformation in Kazakhstan: Assessment of the Current State and Cluster Analysis of Renewable Energy Development”. Economic Series of the Bulletin of L.N. Gumilyov ENU, no. 1, Mar. 2026, pp. 51-71, doi:10.32523/2789-4320-2026-1-51-71.