@article{weko_60060_1, author = "Fujiichi,Yoshimoto and Kozo,Ichida and Takeshi,Kiyono", title = "An Automatic Method for Smoothing Two-Dimensional Data with a Piecewise Bicubic Polynomial", journal = "Information Processing in Japan", year = "1977", volume = "17", number = "0", pages = "99--103", month = "jan" }