000 00565nam a2200109Ia 4500
008 230817s9999 xx 000 0 und d
100 _aThomas Heckelei , Wolfgang Britz , and Yinan Zhang
245 0 _aPositive Mathematical Programming Approaches – Recent Developments in Literature and Applied Modelling
650 _aComputer science, information & general works
856 _uhttps://new.zodml.org/sites/default/files/2023-07/positive_mathematical_programmingestimation_of_programming_modelsfarm_and_sector_modelspolicy_impact_assessment.pdf
942 _cEBK
999 _c36918
_d36918