00678naa#a2200205#i#450# EN\ACADEMUS PUBLISHING\bibl\1978 20241222043327.7 20161201b2016####ek#y0engy0150####ca RU PROBLEM OF HEAVY METAL SURFACE SEDIMENT CONTAMINATION IN THE EASTERN GULF OF FINLAND Conference article/thesis San Francisco Academus Publishing 2016 0 с. Conference article/thesis local Экология. 34.35 grnti Derugina N O Grigoriev A G Ryabchuk Daria Vladimirovna Rybalko A E Zhamoida V A seacoasts.editorum.io