@book{155345,
	author = {Deák, G. and Hungarian Oil and Gas Company and World Petroleum Congress (15th. : 1997 : Beijing) and Bartha, L. and Hungarian Oil and Gas Company},
	title = {Polyisobutylene-polysuccinimides of dispersant and vi-improving efficiency},
	note = {Incluído en : Block II - Production.}
}