Journal on Data Semantics XI - Spaccapietra, Stefano; Halpin, Terry; Kanade, Takeo; Pan, Jeff Z.; Roddick, John; Shvaiko, Pavel; Staab, Steffen; Svatek, Vojtech; Thiran, Philippe; Kittler, Josef; Roddick, John F. (Springer Berlin Heidelberg, 2008)