Robuta

https://econpapers.repec.org/RAS/pni223.htm EconPapers: Kimitaka Nishitani econpapers https://cir.nii.ac.jp/crid/1410294562486229760 Suetsugu Kimitaka | CiNii Research suetsugu cinii research https://cir.nii.ac.jp/crid/1410301319807531776 SUETSUGU Kimitaka | CiNii Research suetsugu cinii research