@proceedings { 738,
	title = {Athabasca Bitumen Upgrading using Different Species of the same ultra dispersed catalyst formulation},
	year = {2010},
	month = {21/03/2010},
	address = {San Francisco, CA},
	author = {C. Sosa and  G. Trujillo and  F. Lopez and  P. Pereira Almao and  }
}