Andres Huertas William Cole Ramakant Nevatia Detecting Runways in Aerial Images. 712-717 1987 conf/aaai/1987 AAAI db/conf/aaai/aaai87.html#HuertasCN87 http://www.aaai.org/Library/AAAI/1987/aaai87-127.php