Cheng-Wei Luo Hsiao-Fei Liu Peng-An Chen Kun-Mao Chao Minkowski Sum Selection and Finding. 460-471 2008 ISAAC http://dx.doi.org/10.1007/978-3-540-92182-0_42 conf/isaac/2008 db/conf/isaac/isaac2008.html#LuoLCC08