@book{196586,
	author = {Lafleur, Carolyn},
	title = {Study looks at emissions, economic characteristics of dual-fuel, high-horsepower engine used in hydraulic fracturing application},
	year = {mayo/jun. 2016},
	note = {Measurements of NOx, soot and non-combusted methane were collected over progression of engine loads, speeds from 1,500-1,950 RPM.}
}