TY - BOOK AU - Sengupta, Jati Kumar TI - Efficiency analysis by production frontiers : the nonparametric approach PB - Kluwer Academic Publishers PY - 1989 T2 - Theory and decision library VL - ser. B . Mathematical and statistical methods EP - ix, 246 p. UR - https://ci.nii.ac.jp/ncid/BA06817571 SN - 0792300289 ER -

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