Authors of the programs used in TT-MULTIPLETS

TTXAS99
The user friendly controll program TTPREP has been written by F.M.F. de Groot.

TTRCN and TTRCG
The original programs RCN31, RCN2 and RCG9 have been written by R.D. Cowan and coworkers and are described in R.D. Cowan, The Theory of Atomic Structure and Spectra (University of California Press, Berkeley, 1981). The programs have been modified by B.T. Thole between 1984 and 1996.

TTRAC
The crystal field multiplet programs used are based on the program written by P.H. Butler and described in Point Group Symmetry Applications: Methods and Tables (Plenum Press, New York, 1981).
The program has been modified by B.T. Thole. The TTRAC99 program has been modified by F.M.F. de Groot

TTBAN
The charge transfer multiplet program TTBAN is written by B.T. Thole (1990), modified by H. Ogasawara (1991) and by B.T. Thole (1992 to 1996).

TTPLO
The plotting program TTPLO has been written by B. Searle (1991).
TTPLO creates a postscript file and/or an xy-file from the results of the TTRCG, TTRAC or TTBAN calculations.