@article{oai:kitami-it.repo.nii.ac.jp:00007011, author = {J., Yan and J., Tamaki and K., Syoji and T., Kuriyagawa}, month = {Nov}, pages = {95--100}, title = {Ductile Regime Machining of Single-Crystal CaF_2 for Aspherical Lenses}, volume = {257-258}, year = {2003} }