Aggregation of Heterogeneous Flexibility Resources Providing Services for System Operators and the Market Participants . Hung. J. Ind. Chem. [Internet]. 2019 Jun. 27 [cited 2024 Nov. 21];47(1):65-70. Available from: https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/hjic-2019-10