The Semantic Web 16th International Conference, ESWC 2019, Portorož, Slovenia, June 2-6, 2019, Proceedings - Hitzler, Pascal; Hitzler, Pascal; Fernández, Miriam; Fernández, Miriam; Janowicz, Krzysztof; Janowicz, Krzysztof; Zaveri, Amrapali; Zaveri, Amrapali; Gray, Alasdair J.G; Gray, Alasdair J.G; Lopez, Vanessa; Lopez, Vanessa; et al. (Springer International Publishing : Imprint: Springer, 2019)