Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) P. K. Giri and S. Bhattacharyya and Dilip K. Singh and R. Kesavamoorthy and B. K. Panigrahi and K. G. M. Nair,Correlation between microstructure and optical properties of ZnO nanoparticles synthesized by ball milling,Journal of Applied Physics,0021-8979,AIP Publishing,2007-11-01,102,9,093515,https://cir.nii.ac.jp/crid/1362262946454599936,https://doi.org/10.1063/1.2804012