Michael H. Albert Mike D. Atkinson Doron Nussbaum Jörg-Rüdiger Sack Nicola Santoro On the longest increasing subsequence of a circular list. 55-59 2007 101 Inf. Process. Lett. 2 http://dx.doi.org/10.1016/j.ipl.2006.08.003 db/journals/ipl/ipl101.html#AlbertANSS07