@booklet {guerreironunes:2004:tfc,
	title = {Low Altitude Terrain Following Control Systems for Autonomous Helicopters},
	year = {2004},
	note = {<p>Final Project of Licenciatura in Electronic and Computer Science Engineering (in Portuguese)</p>
},
	month = {October},
	publisher = {Instituto Superior T{\'e}cnico, Institute for Systems and Robotics},
	abstract = {n/a},
	author = {B. Guerreiro and Nunes, D.}
}
