Conference paperA flexible way to support mixed charging models in free flow tollingMiao Guo, Yong Tao Pei, et al.WCITS 2011
PaperOn preservation under homomorphisms and unions of conjunctive queriesAlbert Atserias, Anuj Dawar, et al.Journal of the ACM
Conference paperThe bionic DBMS is coming, but what will it look like?Ryan Johnson, Ippokratis PandisCIDR 2013