Zhe Zhang Kyuhyung Lee Xiaosong Ma Yuanyuan Zhou PFC: Transparent Optimization of Existing Prefetching Strategies for Multi-Level Storage Systems. 740-751 2008 ICDCS http://dx.doi.org/10.1109/ICDCS.2008.89 conf/icdcs/2008 db/conf/icdcs/icdcs2008.html#ZhangLMZ08