Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) W. Gehlhoff and K. H. Segsa,EPR of iron‐boron centres in silicon,physica status solidi (b),0370-1972,Wiley,1983-02,115,2,443-453,https://cir.nii.ac.jp/crid/1360298345334495616,https://doi.org/10.1002/pssb.2221150214