Bing Yang Jing Chen Enyue Lu S. Q. Zheng A Comparative Study of Efficient Algorithms for Partitioning a Sequence into Monotone Subsequences. 46-57 2007 conf/tamc/2007 TAMC http://dx.doi.org/10.1007/978-3-540-72504-6_4 db/conf/tamc/tamc2007.html#YangCLZ07