@book{ BA13538782, author = "International Conference on Ion Beam Modification of Materials and Withrow, S. P. (Stephen P.) and Poker, D. B.", title = "Ion beam modification of materials : proceedings of the Seventh International Conference on Ion Beam Modification of Materials, Knoxville, TN, USA, 9-14 September 1990", publisher = "North-Holland,Sole distributors for the USA and Canada, Elsevier Science Pub. Co.", year = "1991", URL = "https://ci.nii.ac.jp/ncid/BA13538782" }