Wasn't the publication 'A hypertext software package to help document system designs' published in 1993?
Was 'A hypertext software package to help document system designs' not published in 1993?
ASK { <https://dblp.org/rec/journals/tsmc/ChapmanB93> <https://dblp.org/rdf/schema#yearOfPublication> '1993' FILTER NOT EXISTS { <https://dblp.org/rec/journals/tsmc/ChapmanB93> <https://dblp.org/rdf/schema#yearOfPublication> '1993' } }
<https://dblp.org/rec/journals/tsmc/ChapmanB93>