@inproceedings{sgem2026paper,
  title = {COST OPTIMIZATION OF NUTRIENT INGREDIENTS BY BI-LEVEL MODELING},
  author = {Todor Stoilov Stoilov and Krasimira Stoilova},
  booktitle = {SWS 2026 Conference Preprints},
  year = {2026},
  pages = {},
  publisher = {STEF92 Technology},
  doi = {}
}