@prefix bf: <http://id.loc.gov/ontologies/bibframe/> .
@prefix bflc: <http://id.loc.gov/ontologies/bflc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://stage.bcld.info/instances/8fb0b148-31b9-4626-b289-b1895596f4b6> a bf:Instance ;
    bf:acquisitionSource [ a bf:AcquisitionSource ;
            rdfs:label "Journals Dept., P.0. Box 211, 1000 AE Amsterdam, The Netherlands" ] ;
    bf:adminMetadata [ a bf:AdminMetadata ;
            bflc:catalogerId "Unknown" ;
            bf:date "2026-09-11" ;
            bf:descriptionAuthentication <http://id.loc.gov/vocabulary/marcauthen/pcc> ;
            bf:descriptionLanguage <http://id.loc.gov/vocabulary/languages/eng> ;
            bf:descriptionLevel <http://id.loc.gov/ontologies/bibframe-2-6-0/> ],
        [ a bf:AdminMetadata ;
            bf:agent <http://id.loc.gov/vocabulary/organizations/cbc> ;
            bf:date "2026-09-11T20:14:55.049760+00:00"^^xsd:dateTime ;
            bf:derivedFrom <http://id.loc.gov/resources/instances/11374215> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/c> ] ;
    bf:carrier <http://id.loc.gov/vocabulary/carriers/nc> ;
    bf:dimensions "26 cm" ;
    bf:extent [ a bf:Extent ;
            rdfs:label "volumes" ;
            bf:note [ a bf:Note,
                        <http://id.loc.gov/vocabulary/mnotetype/physical> ;
                    rdfs:label "illustrations" ] ] ;
    bf:firstIssue "Vol. 1, no. 1 (June 1985)" ;
    bf:frequency [ a bf:Frequency ;
            rdfs:label "Quarterly" ;
            bf:date "1985-<Sept. 1988>" ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/former> ],
        [ a bf:Frequency ;
            rdfs:label "8 no. a year" ;
            bf:date "Nov. 1991-" ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/former> ],
        [ a bf:Frequency ;
            rdfs:label "12 no. a year" ;
            bf:date "<1998->" ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/current> ],
        [ a bf:Frequency ;
            rdfs:label "Bimonthly" ;
            bf:date "<Jan. 1991>-Oct. 1991" ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/former> ],
        <http://id.loc.gov/vocabulary/frequencies/irr>,
        <http://id.loc.gov/vocabulary/frequencies/mon> ;
    bf:identifiedBy [ a bf:Lccn ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/cancinv> ;
            rdf:value "sn 86015758 " ],
        [ a bf:Local ;
            bf:source <http://id.loc.gov/vocabulary/organizations/uk> ;
            rdf:value "012779410" ],
        [ a bf:Local ;
            bf:source <http://id.loc.gov/vocabulary/organizations/de-600> ;
            rdf:value "283758-4" ],
        [ a bf:Lccn ;
            rdf:value "   90649274 " ],
        [ a bf:Local ;
            bf:source <http://id.loc.gov/vocabulary/organizations/de-101> ;
            rdf:value "011766220" ],
        [ a bf:Coden ;
            rdf:value "DKENEW" ] ;
    bf:instanceOf <https://stage.bcld.info/works/f512308a-1682-4b12-a08d-91a7f8cbfca7> ;
    bf:issuance <http://id.loc.gov/vocabulary/issuance/serl> ;
    bf:media <http://id.loc.gov/vocabulary/mediaTypes/n> ;
    bf:note [ a bf:Note,
                <http://id.loc.gov/vocabulary/mnotetype/descsource> ;
            rdfs:label "Latest issue consulted: Vol. 25, no. 3 (Apr. 1998) (surrogate)." ],
        [ a bf:Note ;
            rdfs:label "Title from cover." ] ;
    bf:provisionActivity [ a bf:ProvisionActivity,
                bf:Publication ;
            bflc:simpleAgent "North-Holland, Elsevier Science Publishers" ;
            bflc:simpleDate "©1985-" ;
            bflc:simplePlace "Amsterdam" ;
            bf:date "1985/.."^^<http://id.loc.gov/datatypes/edtf> ;
            bf:place <http://id.loc.gov/vocabulary/countries/ne> ;
            bf:status <http://id.loc.gov/vocabulary/mstatus/current> ] ;
    bf:publicationStatement "Amsterdam: North-Holland, Elsevier Science Publishers, ©1985-" ;
    bf:title [ a bf:Title ;
            bf:mainTitle "Data & knowledge engineering" ] .

