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	[книга]
	Proceedings of the X-th jubilee national conference with international participation of the open and underwater mining of minerals, June 07-11, 2009, International house of scientists Fr. J. Curie, Varna, Bulgaria
	Hristov, Stoyan Georgiev и др., редактор - Христов, Стоян Георгиев
	Varna : Sci. and tech. union of mining geology and metallurgy
	2009
ISBN:	978-954-92219-6-1
	Промишленост - конференции Минно дело

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