Neighborhood Index from Currency System Pattern in Various Nations
1Dp-3 流通通貨の種類(システム)から各口の近隣度を導く

Seiji OKAYAMA
1983 Proceedings of the Annual Meeting of Japan Society for Science  
doi:10.14935/jssep.7.0_75 fatcat:7xm5wekbczfw3pfzyprfmivyhi