Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
YAMAMOTO Yasutaka,Extent and Sources of Differences in Productivity between Individual Firms : A Nonparametric Approach to Measuring Technical Efficiency for Roughage Production in Hokkaido's Dairy Farms,北海道農業経済研究,09189742,THE AGRICULTURAL ECONOMICS SOCIETY OF HOKKAIDO,1995-05-01,5,2,50-63,https://cir.nii.ac.jp/crid/1573387452730392704,