[Koha] How to create authority file of personal name to maintain consistency

Suppose during data entry one staff may enter it as Ranganathan.S.R and other staff as Ranganathan, SR or Ranganthan , SR if there are 40 books of Ranganathan and all the entry has to be same as Ranganthan, SR how to do it in the authority file please give the solution -- *Dr. B. RavivenkatDeputy LibrarianTumkur University, Tumkur-572103Karnataka, basralravi@gmail, ravivenkatb@tumkuruniversity.in <ravivenkatb@tumkuruniversity.in>*