00438nam a2200121 a 450000100080000000500110000800800410001910000140006024500990007426001210017365300080029470000140030219328562012-09-03       2012    bl uuuu     u0uu1 u    #d1 aSOUZA, G.  aFractional regression models to assess the impact of covariates in output oriented DEA models.  aIn: INTERNATIONAL CONFERENCE ON DATA ENVELOPMENT ANALYSIS, 10., 2012, Natal, Brazil. Book of abstracts... DEAsc2012  aDEA1 aGOMES, E.