@INPROCEEDINGS{
        NTisaac13,
        AUTHOR = "G. Navarro and S. Thankachan",
	TITLE = "Top-$k$ Document Retrieval in Compact Space and Near-Optimal Time",
        BOOKTITLE = {Proc. 24th Annual International Symposium on
                        Algorithms and Computation (ISAAC)},
        YEAR = "2013",
	SERIES = "LNCS 8283",
	PAGES = "394--404"
    }