Reorder authors to match order in source document

The cause of the discrepancy might be related to the order
of first name and last names in Asian names. In the source:

Batima Punsalmaa (Mongolia) is sorted at "B"
Nguyen Hu Ninh (Vietnam) is sorted at "N" (not "H" like in DB export)
Tranviet Lien (Vietnam) is sorted at "T"