@inproceedings { tatti11order,
author = {Nikolaj Tatti},
title = {Are Your Items in Order},
booktitle = {Proceedings of the SIAM International Conference on Data Mining (SDM)},
year = {2011},
publisher = {SIAM},
groups = {adrem-published}, 
pdf = { http://www.adrem.ua.ac.be/bibrem/pubs/tatti11order.pdf }
}