Süveges, G.B. 2020. Regional Characteristics of Hungarian District Heating Companies Based on their 2009-2017 Financial Reports, with Special Regard to the Rate of Accounts Receivable and to the Energy Efficiency of Household Consumers. Észak-magyarországi Stratégiai Füzetek. 17, 01 (ápr. 2020), 4–16. DOI:https://doi.org/10.32976/stratfuz.2020.1.