LDR 00453naa#a2200181#i#450# 001 EN\\bibl\101883 005 20250827135828.3 011 ## _a2588-0209 100 ## _a20201225b2020####ek#y0engy0150####ca 102 ## _aRU 200 1# _aECOLOGICAL AND ECONOMIC ZONING OF THE PENZA REGION _eJournal article 210 1# _aMoscow _cElectronic science _d2020 215 ## _a0 с. 608 ## _aJournal article _2local 700 #1 _a _g 700 #1 _a _g 700 #1 _a _g 856 4# _amshj.ru _u