Zhengjun Cao Lihua Liu Olivier Markowitch Generalized Greedy Algorithm for Shortest Superstring. 1526-1531 2009 Complex (2) http://dx.doi.org/10.1007/978-3-642-02469-6_32 conf/complex/2009-2 db/conf/complex/complex2009-2.html#CaoLM09