Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ishikuro Mikio and Wagatsuma Kazuaki,Determination of Trace Amounts of Boron in Silicon and Germanium by Curcumin Spectrophotometry after Methyl Borate Distillation,BUNSEKI KAGAKU,05251931,The Japan Society for Analytical Chemistry,2009,58,5,373-377,https://cir.nii.ac.jp/crid/1390282679333131648,https://doi.org/10.2116/bunsekikagaku.58.373