Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sonoda Satomi and Fujita Kazuhiko and Iijima Yasuo,Non-Normal Probability Ellipse for Representing Bivariate Data of the Strength Properties of Timber II.,Mokuzai Gakkaishi,00214795,The Japan Wood Research Society,2014,60,2,87-93,https://cir.nii.ac.jp/crid/1390282681329917184,https://doi.org/10.2488/jwrs.60.87