Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kobata Junpei and Takigawa Yorinobu and Chung Sung Wook and Tsuda Hiroshi and Kimura Hisamichi and Higashi Kenji,Effects of Size and Volume Fraction of Precipitated Crystalline Phase Induced by Friction Stir Processing on Hardness in Zr–Al–Ni–Cu Bulk Metallic Glass,MATERIALS TRANSACTIONS,13459678,The Japan Institute of Metals and Materials,2007,48,9,2409-2413,https://cir.nii.ac.jp/crid/1390282679226283904,https://doi.org/10.2320/matertrans.maw200733