Name the venue in which Zelkowitz published the paper about Software specification process.
In which venue did Marvin publish the paper about Software specification process?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/journals/ac/Zelkowitz93> <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/z/MarvinVZelkowitz> . <https://dblp.org/rec/journals/ac/Zelkowitz93> <https://dblp.org/rdf/schema#publishedIn> ?answer }
<https://dblp.org/pid/z/MarvinVZelkowitz> <https://dblp.org/rec/journals/ac/Zelkowitz93>