00708naa#a2200193#i#450# EN\\bibl\110726 20251226212413.5 2587-6740 20250815b2025####ek#y0engy0150####ca RU Assessment of the ecological and economic condition of the districts of the Penza region by the method of agglomerative clustering Journal article Moscow Electronic science 2025 6 с. Journal article local Размещение. Региональное размещение. 332.132 Murasheva Alla Andreevna Ishamyatova Irina Khafisovna Bespalov Nikita Aleksandrovich mshj.ru