Do we know the band gap of lithium niobate?
C. Thierfelder, S. Sanna, A. Schindlmayr, W.G. Schmidt, Physica Status Solidi C 7 (2010) 362–365.

Electronic structure and effective masses in strained silicon
M. Bouhassoune, A. Schindlmayr, Physica Status Solidi C 7 (2010) 460–463.