50B15F96-19F1-4E8C-ABE5-2D8BF67ED200MAGIC: MAnaGing InComplete Data - New FoundationsFellowshipEP/N023056/1798CB33D-C79E-4578-83F2-72606407192CEPSRCINCOME_ACTUAL1140110E6DF6DB4-73D1-4944-873D-E53FF0DF3427On the Codd semantics of SQL nullsInformation Systems1b40ae32588c525b97f81a0d1f3b7fd1Guagliardo P2019-01-01http://dx.doi.org/10.1016/j.is.2018.08.001http://dx.doi.org/10.1016/j.is.2018.08.001Journal Article/Review5c474cf7708372.20489640