= Filcheva, Ekaterina Georgieva
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	[книга]
	19th International Conference of Humic Substances and their Contribution to the Climate Change Mitigation, 16-21 September 2018, Albena Resort, Bulgaria
	Filcheva, Ekaterina Georgieva редактор, и др. - Филчева, Екатерина Георгиева
	Sofia : Bulg. Humic Substances Soc.
	2018
ISBN:	978-619-90189-3-4
	Почвознание Селско стопанство - конференции Почви - обработка

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