1. Platonov V.V., Proskuryakov V.A., Nikishina M.B., Novikova I.L. Khimicheskiy sostav guminovykh kislot burogo uglya podmoskovnogo basseyna [Chemical composition of humic acids of brown coal of the Moscow region basin]. Zhurnal prikladnoy khimii. 1996. Vol. 69. N12. 2059-2061 (In Russian).
2. Popov A.I. Guminovye veshchestva: svoystva, stroyenie, obrazovanie [Humic substances: properties, structure, formation]. Saint Petersburg: Izd. SPb. universiteta. 2004. 245 (In Russian).
3. Sokrut V.I., Vertushkov V.T., Krotov P.P. Vliyanie fiziologicheski aktivnykh veshchestv, poluchaemykh iz torfa, na rost molodnyaka krupnogo rogatogo skota i sviney [Influence of physiologically active substances obtained from peat on the growth of young cattle and pigs]. Guminovye udobreniya. Teoriya i praktika ikh primeneniya: sbornik nauchnykh trudov. 1977. Vol. 6. 116-119 (In Russian).
4. Lotosh T.D. Eksperimental'nye osnovy i perspektivy ispol'zovaniya preparatov guminovykh kislot iz torfa v meditsine i sel'skokhozyaystvennom proizvodstve [Experimental bases and prospects for the use of humic acid preparations from peat in medicine and agricultural production]. Biologicheskie nauki. 1991. N10. 99-103 (In Russian).
5. Ushakov V.F., Kolotenko V.P., Shapochka M.I. Membranotropnoe deystvie gumata natriya [Membranotropic effect of sodium humate]. Teoriya deystviya fiziologicheski aktivnykh veshchestv. Trudy Dnepropetrovskogo sel'skokhozyaystvennogo instituta. 1983. Vol. 8. 126-134 (In Russian).