@misc{indiciae5a1ccd0ad7c4,
  title = {Umbral orthogonal polynomials},
  author = {Lopez-Sendino, J E and del Olmo, M A},
  year = {2010},
  doi = {10.1063/1.3537865},
  url = {https://www.osti.gov/biblio/21511349},
  note = {Source identifier: 21511349}
}