Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Moench Jens Ingolf and Stephan Ingrid and Koethe Alfred,High Purity Niobium for Neutron Activation Detectors,"Materials Transactions, JIM",09161821,The Japan Institute of Metals,2000,41,1,67-70,https://cir.nii.ac.jp/crid/1390282679223191552,https://doi.org/10.2320/matertrans1989.41.67