Did Weiru Liu and Jun H. co-author the paper 'Preface'?
Have Weiru L. and Jun H. co-authored the paper 'Preface'?
ASK { <https://dblp.org/rec/journals/ijsi/LiuHL12> <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/l/WeiruLiu> . <https://dblp.org/rec/journals/ijsi/LiuHL12> <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/h/JunHong1> }
<https://dblp.org/pid/l/WeiruLiu> <https://dblp.org/pid/h/JunHong1> <https://dblp.org/rec/journals/ijsi/LiuHL12>