เอกสารเผยแพร่ภายใต้สถาบัน "Indiana University" มีอะไรบ้าง?
What are the papers published under the institution "Indiana University"?
inst = pd.DataFrame(columns=['instid', 'name']); authorship = pd.DataFrame(columns=['paperid', 'instid']); papers = pd.DataFrame(columns=['title', 'paperid'])
papers.loc[papers['paperid'].isin(authorship.loc[inst[inst['name'] == 'Indiana University']['instid'], 'paperid']), 'title']