@misc{indiciaed51706f82f99,
  title = {Pontryagin's principle for control problems in age-dependent population dynamics.},
  author = {M Brokate},
  year = {1985},
  doi = {10.1007/bf00276559},
  url = {https://pubmed.ncbi.nlm.nih.gov/4078500/},
  note = {Source identifier: 4078500}
}