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[文献書誌] Kawashima,T.: "Mathematical Characteristics of ROXY Index(I):Distance and Reuened Distanne Used as Weighing Factors" 学習院大学経済論集. 30. 255-297 (1993)
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[文献書誌] Hiraoka,N.: "Mathematical Characteristics of ROXY Index(II):Periodsof Intra-metro-politan Spatial-Cycle Paths and Theoretically-idecl Formulations of Roxy Index" 学習院大学経済論集. 30. 317-422 (1993)
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[文献書誌] Hiraoka,N.: "Mathematical Characteristics of ROXY Index(III):Functional Relationship between “Theoretically-idol Inde〓with CBD Distance Used as weiahirg Factir"and “That with Reverled CBD Distance"" 学習院大学経済論集. 30. (1994)
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[文献書誌] Kawashima,T.: "Aged Population in Spatial Cycles:ROXY Index Analysis for Chno-line Region in Tokyo Metropolitan Area" 学習院大学経済論集. 31. (1994)
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[文献書誌] Kawashima,T.: "Chronolagical Time-lags over Spaticl-Cycle Path:Comparatire Analysis on Inter-City Agglomeyatiom and Reglomeration of Population in 〓vdouesia,Jopan,Sweden and USA" 学習院大学経済経営研究所年報. 7. (1994)