Vibrational Fingerprints of LiNbO3-LiTaO3Mixed Crystals
S. Sanna, A. Riefer, S. Neufeld, W.G. Schmidt, G. Berth, M. Rüsing, A. Widhalm, A. Zrenner, Ferroelectrics 447 (2013) 63–68.

Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals
S. Sanna, A. Riefer, S. Neufeld, W.G. Schmidt, G. Berth, A. Widhalm, A. Zrenner, in: Proceedings of ISAF-ECAPD-PFM 2012, 2012.

Imaging of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy
G. Berth, W. Hahn, V. Wiedemeier, A. Zrenner, S. Sanna, W.G. Schmidt, Ferroelectrics 420 (2011) 44–48.

Imaging of Ferroelectric Micro-Domains in X-Cut Lithium Niobate by Confocal Second Harmonic Microscopy
G. Berth, V. Wiedemeier, K.-P. Hüsch, L. Gui, H. Hu, W. Sohler, A. Zrenner, Ferroelectrics 389 (2009) 132–141.