00604naa#a2200181#i#450# EN\\bibl\72793 20240520100848.1 2073-5529 20231226b2023####ek#y0engy0150####ca RU Changes of the heavy metals content in Perca fluviatilis liver Journal article Astrakhan Astrakhan State Technical University 2023 5 с. Journal article local Osteichthyes. Костные рыбы. 597.4/.5 Devyatkin Gennady Viacheslavovich Kobceva Anastasiya Alekseevna vestnik.astu.org