The development of GTPack is an academic project and has been reported in a number of peer-reviewed publications. By using GTPack you are obliged to cite the following references:

1. W. Hergert, R. M. Geilhufe, Group Theory in Solid State Physics and Photonics: Problem Solving with Mathematica, Wiley-VCH, 2018

2. R. M. Geilhufe, W. Hergert, GTPack: A Mathematica group theory package for applications in solid-state physics and photonics, Frontiers in Physics, 6:86, 2018 >>