@Article{Supelec111,
author = {Y Zhang and Laurent Guilbert and Patrice Bourson and K Polgar and Marc Fontana},
title = {{Characterization of short-range heterogeneities in sub-congruent lithium niobate by micro-Raman spectroscopy}},
journal = {Journal of Physics: Condensed Matter},
year = {2006},
volume = {18},
number = {3},
pages = {957-963},
month = {jan},
url = {http://dx.doi.org/10.1088/0953-8984/18/3/013}
}