@article{oai:soar-ir.repo.nii.ac.jp:00013691, author = {ISHIKAWA, Hiroshi}, journal = {Journal of the Faculty of Textile Science and Technology, Shinshu University. Ser. B, Engineering}, month = {Dec}, note = {Article, Journal of the Faculty of Textile Science and Technology, Shinshu University. Ser. B, Engineering 8: 1-22(1966)}, pages = {1--22}, title = {STUDIES ON THE REFRACTIVE INDEX OF POLYOLEFINE FILAMENTS WITH SPECIAL REFERENCE TO POLYPROPYLENE FILAMENTS}, volume = {8}, year = {1966} }