I have bulit a database with more than 20,000 pieces of references and about 3,000 of them have fulltexts. Unfortunately, when I rank them by letter or year, the result always goes wrong.
Any one can help me to solve this problem?
I have bulit a database with more than 20,000 pieces of references and about 3,000 of them have fulltexts. Unfortunately, when I rank them by letter or year, the result always goes wrong.
Any one can help me to solve this problem?