# https://id.confref.org/data/confref-portal/event/mfdbs1987 (confref labs, beta)
@prefix cr: <https://id.confref.org/ontology/> .
@prefix portal: <https://id.confref.org/data/confref-portal/vocab/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <http://schema.org/> .
@prefix wd: <http://www.wikidata.org/entity/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://id.confref.org/data/confref-portal/event/mfdbs1987>
    a portal:Conference ;
    schema:location wd:Q1731 ;
    rdfs:label "Symposium on Mathematical Fundamentals of Database Systems (MFDBS)" ;
    portal:acronym "MFDBS" ;
    portal:area <https://id.confref.org/data/confref-portal/area/2> ;
    portal:city "Dresden" ;
    portal:country "GDR" ;
    portal:endDate "1987-01-23"^^xsd:date ;
    portal:keyword "?-acyclicity" ,
        "DURST" ,
        "INGRES" ,
        "Navigation" ,
        "Query optimization" ,
        "Tableau" ,
        "data manipulation language" ,
        "nonnull condition" ,
        "predicate calculus" ,
        "relational algebra" ,
        "relational database" ,
        "unambiguity" ,
        "universal relation view" ;
    portal:name "Symposium on Mathematical Fundamentals of Database Systems (MFDBS)" ;
    portal:portalPage <http://portal.confref.org/list/mfdbs1987> ;
    portal:series <https://id.confref.org/data/confref-portal/series/mfdbs> ;
    portal:startDate "1987-01-19"^^xsd:date ;
    portal:submissionExtended "false"^^xsd:boolean ;
    portal:year "1987"^^xsd:integer ;
    cr:discipline wd:Q21198 ;
    cr:field <https://id.confref.org/data/oecd-fos/1.2> ;
    cr:sameAs <https://dblp.org/db/conf/mfdbs/mfdbs87> .