Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Vesselin Dimitrov and Yanko Dimitriev and Angelo Montenero,IR spectra and structure of V2O5GeO2Bi2O3 glasses,Journal of Non-Crystalline Solids,0022-3093,Elsevier BV,1994-12,180,1,51-57,https://cir.nii.ac.jp/crid/1364233268450847616,https://doi.org/10.1016/0022-3093(94)90396-4