00600naa#a2200193#i#450# EN\\bibl\77228 20250330090716.7 1819-4036 20120925b2012####ek#y0engy0150####ca RUS RU THE CONTENT OFORGANIC SUBSTANCE IN AQUATIC ECOSYSTEMSAS ECOLOGICAL CONDITIONINDICATOR Journal article Krasnoyarsk Krasnoyarsk State Agrarian University 2012 4 с. Journal article local . 54.01:574:556.5 RUS Pakusina Antonina Pavlovna Platonova T P kgau.editorum.ru