@misc{indiciae845d2fc07760,
  title = {On Some Variational Problems Occurring in the Theory of Dynamic Programming.},
  author = {R Bellman and I Glicksberg and O Gross},
  year = {1953},
  doi = {10.1073/pnas.39.4.298},
  url = {https://pubmed.ncbi.nlm.nih.gov/16589264/},
  note = {Source identifier: 16589264}
}