Makarenko Nikolay A., Parnachev Valeriy P., Arkhipov Aleksandr L., Arkhipova Natalya V. «Ecogeochemical features of soil and bottom sediments of the cluster area "Lake Itkul" in the State Natural Reserve "Khakassky"» // Tomsk State University Journal 2014. №386 C.193-200
