Database: academic
Question: return me the paper by " H. V. Jagadish " with the most citations .
SQL:
SELECT t3.title FROM writes AS t2 JOIN author AS t1 ON t2.aid  =  t1.aid JOIN publication AS t3 ON t2.pid  =  t3.pid WHERE t1.name  =  "H. V. Jagadish" ORDER BY t3.citation_num DESC LIMIT 1;