@article{Verweij_1979,
title={The structure of lithium,
sodium and potassium germanate glasses,
studied by Raman scattering},
volume={34},
ISSN={0022-3093},
url={http://dx.doi.org/10.1016/0022-3093(79)90008-5},
DOI={10.1016/0022-3093(79)90008-5},
number={1},
journal={Journal of Non-Crystalline Solids},
publisher={Elsevier BV},
author={Verweij,
H. and Buster,
J.H.J.M.},
year={1979},
month=aug,
pages={81–99} }