CREATE TABLE table_203_788 (id NUMBER, "year" NUMBER, "author" CLOB, "illustrator" CLOB, "title" CLOB, "publisher" CLOB)

which other author , besides lewis carroll , has won the kurt maschler award twice ?
SELECT "author" FROM table_203_788 WHERE "author" <> 'lewis carroll' GROUP BY "author" HAVING COUNT(*) = 2
SELECT "author" FROM "table_203_788" WHERE "author" <> 'lewis carroll' GROUP BY "author" HAVING COUNT(*) = 2