Xin Sun Derong Shen Zhenhua Wang Yue Kou Tiezheng Nie Ge Yu LAD: Layered Adaptive Data Integration Architecture. 897-902 2008 ICYCS http://dx.doi.org/10.1109/ICYCS.2008.175 conf/icycs/2008 db/conf/icycs/icycs2008.html#SunSWKNY08