A new version of the BoltzTrap code (V1.2.3) by G. Madsen including the most recent update is available from the ICAMS webpage.
Most recent update: July 1 2013:
V1.2.3. Fixed carrier concentration (Matthieu Verstrate) and reading of momentum matrix elements (Lasse Bjerg) are documented.
Boltzmann Transport Properties (BoltzTraP) is a program for calculating the semi-classic transport coefficients. The code uses a mesh of self-consistent band energies and is interfaced to the WIEN2k program.