Shirish Tatikonda Srinivasan Parthasarathy Matthew Goyder LCS-TRIM: Dynamic Programming Meets XML Indexing and Querying. 63-74 2007 conf/vldb/2007 VLDB http://www.vldb.org/conf/2007/papers/research/p63-tatikonda.pdf db/conf/vldb/vldb2007.html#TatikondaPG07