00607naa#a2200193#i#450# EN\INFRA-M\bibl\3064 20240630151727.7 2075-4094 20141105b2014####ek#y0engy0150####ca RUS RU Genetic limk of the biologiacal activity of sapropel in the Astrakhan region with the source animal and plant material Journal article Moscow INFRA-M Academic Publishing LLC. 2014 5 с. Journal article local Platonov V. Khadartsev Aleksandr Fridzon K. zh-szf.ru