Laurynas Biveinis Simonas Saltenis Christian S. Jensen Main-Memory Operation Buffering for Efficient R-Tree Update. 591-602 2007 conf/vldb/2007 VLDB http://www.vldb.org/conf/2007/papers/research/p591-biveinis.pdf db/conf/vldb/vldb2007.html#BiveinisSJ07