@article{weko_59992_1, author = "Tohru,Nishigaki and Kenichiro,Noguchi and Kazuhiko,Ohmachi", title = "An Approach to the GRM Performance Analysis by Asymptotic Approximation", journal = "Journal of Information Processing ", year = "1980", volume = "3", number = "2", pages = "59--67", month = "aug" }