query: SELECT DISTINCT ?item ?itemLabel ?ISSN ?languageLabel 
  WHERE
  {
    ?item wdt:P31/wdt:P279* wd:Q5633421.
    ?item wdt:P236 ?ISSN.
    OPTIONAL{?item wdt:P1476 ?title.}
    OPTIONAL{?item wdt:P407 ?language.} 
    FILTER(!bound(?title)) 
    FILTER(!bound(?language)) 
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en,fr,de,es". }
    }
  ORDER BY ?item 
  LIMIT 100