@article{oai:kwansei.repo.nii.ac.jp:00019483, author = {杉原, 左右一 and Sugihara, Soichi}, issue = {2}, journal = {International review of business}, month = {Dec}, pages = {43--49}, title = {Statistical Estimation of Simple Regression Model with Nonstationary I(d) Regressor and Stationary Autoregressive Error Term}, year = {1997} }