Buffer effects of titanium in the case of silver/α - Al2O3(0001) E. Søndergård, O. Kerjan, D. Abriou and J. Jupille Eur. Phys. J. D, 24 1-3 (2003) 343-345 Published online: 03 July 2003 DOI: 10.1140/epjd/e2003-00139-0